178-417: Blitzkrieg is a word used to describe a combined arms surprise attack, using a rapid, overwhelming force concentration that may consist of armored and motorized or mechanized infantry formations, together with artillery , air assault , and close air support . The intent is to break through an opponent's lines of defense, dislocate the defenders, confuse the enemy by making it difficult to respond to
356-480: A Kesselschlacht (cauldron battle/battle of encirclement). During the invasion of Poland , Western journalists adopted the term blitzkrieg to describe that form of armored warfare. The term had appeared in 1935, in the German military periodical Deutsche Wehr ("German Defence"), in connection to quick or lightning warfare. German maneuver operations were successful during the campaigns of 1939–1941, involving
534-486: A BMW 132 engine, producing 450 kW (600 hp ). The machine was also fitted with dive brakes for dive testing. The aircraft was given a good evaluation and "exhibited very good flying characteristics". Ernst Udet took an immediate liking to the concept of dive-bombing after flying the Curtiss F11C Goshawk . When Walther Wever and Robert Ritter von Greim were invited to watch Udet perform
712-459: A 250 kg (550 lb) bomb load, and its cruising speed was 250 km/h (160 mph). Richthofen pushed for a more powerful engine. According to the test pilots, the Heinkel He 50 had a better acceleration rate, and could climb away from the target area much more quickly, avoiding enemy ground and air defences. Richthofen stated that any maximum speed below 350 km/h (220 mph)
890-645: A battle would have lasted months with many hundreds of thousands of casualties. Co-ordination and planning were the key elements, and the use of combined arms tactics in the Hundred Days Offensive in 1918 allowed the Allied forces to exploit breakthroughs in the enemy trenches, forcing the surrender of the Central Powers . In World War II combined arms was a fundamental part of some operational doctrines like Heinz Guderian 's Blitzkrieg , or
1068-481: A battlefield. That theory of war also emphasised consolidation and recommended caution against overconfidence and ruthless exploitation. During the Sinai and Palestine campaign , operations involved some aspects of what would later be called blitzkrieg. The decisive Battle of Megiddo included concentration, surprise and speed. Success depended on attacking only in terrain favouring the movement of large formations around
1246-575: A breakthrough of the enemy's line, units comprising the Schwerpunkt were not supposed to become decisively engaged with enemy front line units to the right and the left of the breakthrough area. Units pouring through the hole were to drive upon set objectives behind the enemy front line. During the Second World War, German Panzer forces used their motorized mobility to paralyze the opponent's ability to react. Fast-moving mobile forces seized
1424-488: A combination of these skilled and unskilled forces to win battles. An army that has multiple skills available can engage a larger force that incorporates mainly one or two types of troops. Each type of military formation – infantry, archers, cavalry, or peasants – has certain advantages that the other does not have. Infantry allows a force to hold ground and in the event of overwhelming enemy forces withdraw into terrain that mounted troops cannot maneuver as easily, thus negating
1602-581: A combined arms approach, seldom operating without supporting infantry. The French army of the Valois kings, composed of heavily armoured gendarmes (professional versions of the medieval knight ), Swiss and Landsknecht mercenary pikemen , and heavy cannons took form during the transition from the medieval way of war to the early modern period . The late 15th century saw the development of combined pike and shot formations in Europe, starting with
1780-578: A complete unit, which increased speed of repair. The airframe was also subdivided into sections to allow transport by road or rail. The wings were of standard Junkers double-wing construction. This gave the Ju 87 considerable advantage on take-off; even at a shallow angle, large lift forces were created through the aerofoil , reducing take-off and landing runs. In accordance with the Aircraft Certification Centre for "Stress Group 5",
1958-404: A few dozen tanks. As the end of the war approached, Germany also experienced critical shortages in fuel and ammunition stocks as a result of Anglo-American strategic bombing and blockade. Although the production of Luftwaffe fighter aircraft continued, they could not fly because of lack of fuel. What fuel there was went to panzer divisions, and even then, they could not operate normally. Of
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#17327651053732136-453: A generic description for the style of maneuver warfare practised by Germany during the early part of World War II, rather than as an explanation. According to Frieser, in the context of the thinking of Heinz Guderian on mobile combined arms formations, blitzkrieg can be used as a synonym for modern maneuver warfare on the operational level. The traditional meaning of "blitzkrieg" is that of German tactical and operational methodology during
2314-421: A hand-pump on the fuel cock armature . The powerplant was cooled by a 10-litre (2.6 US gal), ring-shaped aluminium water container situated between the propeller and engine. A further container of 20-litre (5.3 US gal) was positioned under the engine. The control surfaces operated in much the same way as other aircraft, with the exception of the innovative automatic pull-out system. Releasing
2492-760: A heavy fighter escort to operate effectively. After the Battle of Britain, the Luftwaffe deployed Stuka units in the Balkans Campaign , the African and the Mediterranean theatres and in the early stages of the Eastern Front war, where it was used for general ground support, as an effective specialised anti-tank aircraft and in an anti-shipping role. Once the Luftwaffe lost air superiority ,
2670-460: A knob on the control column. An elongated U-shaped crutch located under the fuselage swung the bomb out of the way of the propeller, and the aircraft automatically began a 6 g pullout. Once the nose was above the horizon, dive brakes were retracted, the throttle was opened, and the propeller was set to climb. The pilot regained control and resumed normal flight. The coolant flaps had to be reopened quickly to prevent overheating. The automatic pull-out
2848-418: A lack of adequate aircraft. The 24 January crash had already destroyed one machine. The second prototype was also beset by design problems. It had its twin stabilisers removed and a single tail fin installed due to fears over stability. Due to a shortage of engines, instead of a DB 600, a BMW "Hornet" engine was fitted. All these delays set back testing until 25 February 1936. By March 1936, the second prototype,
3026-560: A larger 3.3 m (11 ft) propeller. The Ju 87 was capable of carrying a 500 kg (1,100 lb) bomb, but only if not carrying the rear gunner/radio operator as, even with the Jumo 210D, the Ju 87 was still underpowered for operations with more than a 250 kg (550 lb) bomb load. All Ju 87 As were restricted to 250 kg (550 lb) weapons (although during the Spanish Civil War missions were conducted without
3204-419: A mechanical pneumatics system from the pilot's control column. The rear gunner/radio operator operated one 7.92 mm (.312 in) MG 15 machine gun for defensive purposes. The engine and propeller had automatic controls, and an auto-trimmer made the aircraft tail-heavy as the pilot rolled over into his dive, lining up red lines at 60°, 75° or 80° on the cockpit side window with the horizon and aiming at
3382-521: A simple form of combined arms, with a combination of dismounted knights forming a foundation for formations of English longbowmen . The lightly protected longbowmen could down their French opponents at a distance, whilst the armoured men-at-arms could deal with any Frenchmen who made it to the English lines. This is the crux of combined arms: to allow a combination of forces to achieve what would be impossible for its constituent elements to do alone. During
3560-517: A single 250 kg (550 lb) bomb if the aircraft was fully loaded with fuel. The Ju 87 R-1 had a B-1 airframe with the exception of a modification in the fuselage which enabled an additional oil tank. This was installed to feed the engine due to the increase in range with the extra fuel tanks. The Ju 87 R-2 had the same airframe as the B-2, and strengthened to ensure it could withstand dives of 600 km/h (370 mph). The Jumo 211D in-line engine
3738-521: A small cavalry unit. The legion was sometimes also incorporated into a higher-echelon combined arms unit – e.g., in one period it was customary for a general to command two legions plus two similarly sized units of auxiliaries, lighter units useful as screens or for combat in rough terrain. Later during the Roman Empire, auxiliary soldiers outnumbered the core legionary troops. The army of the Han dynasty
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#17327651053733916-630: A tank company to an infantry battalion. Combined arms operations date back to antiquity, where armies would usually field a screen of skirmishers to protect their spearmen during the approach to contact. Especially in the case of the Greek hoplites , however, the focus of military thinking lay almost exclusively on the heavy infantry. In more elaborate situations armies of various nationalities fielded different combinations of light, medium, or heavy infantry, cavalry, chariotry, camelry, elephantry, and artillery (mechanical weapons). Combined arms in this context
4094-755: A trial flight in May 1934 at the Jüterbog artillery range, it raised doubts about the capability of the dive bomber. Udet began his dive at 1,000 m (3,300 ft) and released his 1 kg (2.2 lb) bombs at 100 m (330 ft), barely recovering and pulling out of the dive. The chief of the Luftwaffe Command Office Walther Wever, and the Secretary of State for Aviation Erhard Milch , feared that such high-level nerves and skill could not be expected of "average pilots" in
4272-432: A unified command structure . Also, most modern military units can, if the situation requires it, call on yet more branches of the military, such as infantry requesting bombing or shelling by military aircraft or naval forces to augment their ground offensive or protect their land forces. The mixing of arms is sometimes pushed down below the level at which homogeneity ordinarily prevails, such as by temporarily attaching
4450-468: Is also an example, fielding mêlée infantry (equipped with a variety of different weapons ranging from swords to pikes to halberd-like weapons), archers, crossbowmen, and cavalry (ranging from horse archers to heavy lancers). One recorded tactical formation during the Han dynasty included three ranks of halberds, swordsmen, and spearmen, supported by crossbows, and with cavalry on the flanks. Civilizations such as
4628-509: Is also common for historians and writers to include psychological warfare by using fifth columnists to spread rumours and lies among the civilian population in the theatre of operations. The origin of the term blitzkrieg is obscure. It was never used in the title of a military doctrine or handbook of the German Army or Air Force, and no "coherent doctrine" or "unifying concept of blitzkrieg" existed; German High Command mostly referred to
4806-473: Is especially true if the attacking formation lacks the reserve to keep funnelling forces into the spearhead or the mobility to provide infantry, artillery and supplies into the attack. If the defender can hold the shoulders of the breach, it has the opportunity to counter-attack into the flank of the attacker and potentially to cut it off the van, as what happened to Kampfgruppe Peiper in the Ardennes. During
4984-469: Is supplemented by satellite photos and passive reception of enemy radio emissions, forward observers with digital target designation, specialized scouting aircraft, anti-artillery radars and gun-laying software for artillery. Based on this doctrine, many US ground vehicles moved across the landscape alone. If they encountered an enemy troop or vehicle concentration, they would assume a defensive posture, lay down as much covering fire as they could, designate
5162-418: Is usually given as a major contributing factor in the failure. It is an example of why generals needed to use combined arms to overcome the tactics used by enemy officers to frustrate an attack by a single arm of an army. In contrast the 27th (Inniskilling) suffered 478 casualties from an initial strength of 750 because of their exposure to attack by French combined arms. They were located near
5340-506: Is usually in the order of 60 degrees ... When flying the Stuka, because it's all automatic, you are really flying vertically ... The Stuka was in a class of its own." Extensive tests were carried out by the Junkers works at their Dessau plant. It was discovered that the highest load a pilot could endure was 8.5 g for three seconds, when the aircraft was pushed to its limit by
5518-437: Is what I want – and that is what I will have". Guderian summarized combined-arms tactics as the way to get the mobile and motorized armored divisions to work together and support each other to achieve decisive success. In his 1950 book, Panzer Leader , he wrote: In this year, 1929, I became convinced that tanks working on their own or in conjunction with infantry could never achieve decisive importance. My historical studies,
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5696-642: The Condor Legion . Guderian said that the tank deployment was "on too small a scale to allow accurate assessments to be made". (The true test of his "armored idea" would have to wait for the Second World War.) However, the Luftwaffe also provided volunteers to Spain to test both tactics and aircraft in combat, including the first combat use of the Stuka . During the war, the Condor Legion undertook
5874-564: The Battle of Kursk , the Red Army used a combination of defence in great depth, extensive minefields and tenacious defense of breakthrough shoulders. In that way, they depleted German combat power even as German forces advanced. The reverse can be seen in the Russian summer offensive of 1944, Operation Bagration , which resulted in the destruction of Army Group Center. German attempts to weather
6052-627: The Brusilov Offensive . Later, Marshal Mikhail Tukhachevsky (1893–1937), Georgii Isserson [ ru ] (1898–1976) and other members of the Red Army developed a concept of deep battle from the experience of the Polish–Soviet War of 1919–1920. Those concepts would guide the Red Army doctrine throughout the Second World War. Realising the limitations of infantry and cavalry, Tukhachevsky advocated mechanized formations and
6230-591: The Carthaginians and Sassanids also were known to have fielded a combination of infantry supported by powerful cavalry. At the Battle of Hastings (1066) English infantry fighting from behind a shield wall were defeated by a Norman army consisting of archers, foot soldiers (infantry), and mounted knights (cavalry). One of the tactics used by the Normans was to tempt the English to leave the shield wall to attack retreating Norman infantry only to destroy them in
6408-460: The Luftwaffe chose a method of carpet bombing , resulting in heavy civilian casualties. Combined arms Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects—for example, using infantry and armour in an urban environment in which each supports the other. According to the strategist William S. Lind , combined arms can be distinguished from
6586-554: The Luftwaffe flew some 300 sorties on 6 June. Though German fighter presence over Normandy increased over the next days and weeks, it never approached the numbers that the Allies commanded. Fighter-bomber attacks on German formations made movement during daylight almost impossible. Subsequently, shortages soon developed in food, fuel and ammunition and severely hampered the German defenders. German vehicle crews and even flak units experienced great difficulty moving during daylight. Indeed,
6764-539: The Luftwaffe 's Condor Legion during the Spanish Civil War of 1936–1939 and served the Axis in World War II from beginning to end (1939–1945). The aircraft is easily recognisable by its inverted gull wings and fixed spatted undercarriage . Upon the leading edges of its faired main gear legs were mounted ram-air sirens known as Jericho trumpets, which became a propaganda symbol of German air power and of
6942-699: The Luftwaffe . Nevertheless, development continued at Junkers. Udet's "growing love affair" with the dive bomber pushed it to the forefront of German aviation development. Udet went so far as to advocate that all medium bombers should have dive-bombing capabilities, which initially doomed the only dedicated, strategic heavy bomber design to enter German front-line service during the war years—the 30-metre wingspan Heinkel He 177 A—into having an airframe design (due to Udet examining its design details in November 1937) that could perform "medium angle" dive-bombing missions, until Reichsmarschall Hermann Göring exempted
7120-610: The Napoleonic Wars . After 25 years of near continuous warfare, the armies that met at the Battle of Waterloo in 1815 were organized in a similar manner – into corps which contained infantry, cavalry and artillery (see Order of battle of the Waterloo Campaign ), and used similar combined arms tactics. Within each corps were divisions of infantry or cavalry made up of brigades and an artillery unit. An army would usually also have reserves of all three arms under
7298-567: The Tiger tanks lost against the US Army, nearly half of them were abandoned for lack of fuel. German volunteers first used armor in live field-conditions during the Spanish Civil War (1936–1939). Armor commitment consisted of Panzer Battalion 88, a force built around three companies of Panzer I tanks that functioned as a training cadre for Spain's Nationalists. The Luftwaffe deployed squadrons of fighters , dive-bombers and transport aircraft as
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7476-635: The United States Army occupied the Junkers factory at Dessau on 21 April 1945, they were both impressed at and interested in the medical flight tests with the Ju 87. The concept of dive bombing became so popular among the leadership of the Luftwaffe that it became almost obligatory in new aircraft designs. Later bomber models like the Junkers Ju 88 and the Dornier Do 217 were equipped for dive bombing. The Heinkel He 177 strategic bomber
7654-749: The colunelas of the Spanish general Gonzalo Fernández de Córdoba , evolving into the tercios of Hapsburg Spain and the Imperial Army of the Holy Roman Empire during the 16th century . In Japan, at the battle of Nagashino (長篠の戦い) in 1575, forces of the Oda clan successfully employed combined arms against the Takeda clan , which heavily relied on cavalry. The Oda army erected palisades to protect their ashigaru musketeers that shot down
7832-552: The leading edge and could rotate 90°. The RLM was still not interested in the Ju 87 and was not impressed that it relied on a British engine. In late 1935, Junkers suggested fitting a DB 600 inverted V-12 engine, with the final variant to be equipped with the Jumo 210 . This was accepted by the RLM as an interim solution. The reworking of the design began on 1 January 1936. The test flight could not be carried out for over two months due to
8010-488: The wing flaps , were made of Pantal (a German aluminium alloy containing titanium as a hardening element) and its components made of Elektron . Bolts and parts that were required to take heavy stress were made of steel. The Ju 87 was fitted with detachable hatches and removable coverings to aid and ease maintenance and overhaul. The designers avoided welding parts wherever possible, preferring moulded and cast parts instead. Large airframe segments were interchangeable as
8188-597: The "Picchiatello", while others went to the other members of the Axis , including Hungary, Bulgaria and Romania. The B-2 also had an oil hydraulic system for closing the cowling flaps . This continued in all the later designs. Production of the Ju 87 B started in 1937. 89 B-1s were to be built at Junkers' factory in Dessau and another 40 at the Weserflug plant in Lemwerder by July 1937. Production would be carried out by
8366-538: The 1937 bombing of Guernica , which had a tremendous psychological effect on the populations of Europe. The results were exaggerated, and the Western Allies concluded that the "city-busting" techniques were now part of the German way in war. The targets of the German aircraft were actually the rail lines and bridges, but lacking the ability to hit them with accuracy (only three or four Ju 87s saw action in Spain),
8544-467: The Allies' 600 sorties, the Luftwaffe on average flew 1,500 sorties a day. On 13 May, Fliegerkorps VIII flew 1,000 sorties in support of the crossing of the Meuse. The following day the Allies made repeated attempts to destroy the German pontoon bridges, but German fighter aircraft, ground fire and Luftwaffe flak batteries with the panzer forces destroyed 56 percent of the attacking Allied aircraft, and
8722-524: The Ardennes. Since the French thought that the Ardennes unsuitable for massive troop movement, particularly for tanks, the area was left with only light defences, which were quickly overrun by the Wehrmacht . The Germans quickly advanced through the forest and knocked down the trees that the French had thought would impede them. The influence of air forces over forces on the ground changed significantly over
8900-429: The Battle of France in 1940, the 4th Armoured Division (Major-General Charles de Gaulle) and elements of the 1st Army Tank Brigade (British Expeditionary Force) made probing attacks on the German flank and pushed into the rear of the advancing armored columns at times. That may have been a reason for Hitler to call a halt to the German advance. Those attacks combined with Maxime Weygand 's hedgehog tactic would become
9078-539: The Combined Arms)", known as Das Fug (1921–1923) and Truppenführung (1933–1934), containing standard procedures for combined-arms warfare. The Reichswehr was influenced by its analysis of pre-war German military thought, particularly infiltration tactics since at the end of the war, they had seen some breakthroughs on the Western Front and the maneuver warfare which dominated the Eastern Front . On
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#17327651053739256-495: The Eastern Front regularly slowed both sides) or extreme snow. Operation Barbarossa helped confirm that armor effectiveness and the requisite aerial support depended on weather and terrain. The disadvantages of terrain could be nullified if surprise was achieved over the enemy by an attack in areas that had been considered natural obstacles, as occurred during the Battle of France in which the main German offensive went through
9434-537: The Eastern Front, the war did not bog down into trench warfare since the German and the Russian Armies fought a war of maneuver over thousands of miles, which gave the German leadership unique experience that was unavailable to the trench-bound Western Allies. Studies of operations in the East led to the conclusion that small and coordinated forces possessed more combat power than large uncoordinated forces. After
9612-505: The German Army to achieve superiority at the Schwerpunkt , whether attacking or defending, to turn local success at the Schwerpunkt into the progressive disorganisation of the opposing force and to create more opportunities to exploit that advantage even if the Germans were numerically and strategically inferior in general. In the 1930s, Guderian summarized that as Klotzen, nicht kleckern! (roughly "splash, don't spill") Having achieved
9790-446: The German armed forces had evolved a radically new operational method. His book offered scant clues as to how German lightning victories might be won. In English and other languages, the term had been used since the 1920s. The term was first used in the publications of Ferdinand Otto Miksche, first in the magazine "Army Quarterly", and in his 1941 book Blitzkrieg , in which he defined the concept. In September 1939, Time magazine termed
9968-466: The German military action as a "war of quick penetration and obliteration – Blitzkrieg , lightning war". After the invasion of Poland, the British press commonly used the term to describe German successes in that campaign. J. P. Harris called the term "a piece of journalistic sensationalism – a buzz-word with which to label the spectacular early successes of the Germans in the Second World War". The word
10146-521: The Germans' air parity or superiority allowed the unencumbered movement of ground forces, their unhindered assembly into concentrated attack formations, aerial reconnaissance, aerial resupply of fast moving formations and close air support at the point of attack. The Allied air forces had no close air support aircraft, training or doctrine. The Allies flew 434 French and 160 British sorties a day but methods of attacking ground targets had yet to be developed and so Allied aircraft caused negligible damage. Against
10324-697: The He 177A, Germany's only operational heavy bomber, in September 1942 from being given the task of such a mismatched mission profile for its large airframe. The design of the Ju 87 had begun in 1933 as part of the Sturzbomber-Programm . The Ju 87 was to be powered by the British Rolls-Royce Kestrel engine. Ten engines were ordered by Junkers on 19 April 1934 for £ 20,514, two shillings and sixpence. The first Ju 87 prototype
10502-402: The Ju 87 had reached the acceptable structural strength requirements for a dive bomber. It was able to withstand diving speeds of 600 km/h (370 mph) and a maximum level speed of 340 km/h (210 mph) near ground level, and a flying weight of 4,300 kg (9,500 lb). Performance in the diving attack was enhanced by the introduction of dive brakes under each wing, which allowed
10680-514: The Ju 87 stood little chance of becoming the Luftwaffe's main dive bomber, as it was underpowered in his opinion. On 9 June 1936, the RLM ordered cessation of development in favour of the Heinkel He 118 , a rival design. Udet cancelled the order the next day, and development continued. On 27 July 1936, Udet crashed the He 118 prototype, He 118 V1 D-UKYM. That same day, Charles Lindbergh was visiting Ernst Heinkel , so Heinkel could communicate with Udet only by telephone. According to this version of
10858-422: The Ju 87 to maintain a constant speed and allow the pilot to steady his aim. It also prevented the crew from suffering extreme g forces and high acceleration during "pull-out" from the dive. The fuselage had an oval cross-section and housed, in most examples, a Junkers Jumo 211 water-cooled inverted V-12 engine . The cockpit was protected from the engine by a firewall ahead of the wing centre section where
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#173276510537311036-432: The Ju 87A at this time. Prototypes Production variants The Ju 87 B series was to be the first mass-produced variant. A total of six pre-production Ju 87 B-0 were produced, built from Ju 87 A airframes. The first production version was the Ju 87 B-1, with a considerably larger engine, its Jumo 211D generating 1,200 PS (883 kW or 1,184 hp), and completely redesigned fuselage and landing gear, replacing
11214-468: The Jumo 210D, the A-1 had two 220 L (58 US gal; 48 imp gal) fuel tanks built into the inner wing, but it was not armoured or protected. The A-1 was also intended to be fitted with four 7.92 mm (0.312 in) MG 17 machine guns in its wings, but two of these—one per side—were omitted due to weight concerns; the pair that remained were fed a total of 500 rounds of ammunition, stored in
11392-545: The Jumo 210Da. The first A series variant, the A-0, was of all-metal construction, with an enclosed cockpit under a "greenhouse" well-framed canopy; bearing twin radio masts on its aft sections, diagonally mounted to either side of the airframe's planform centreline and unique to the -A version. To ease the difficulty of mass production, the leading edge of the wing was straightened out and the ailerons ' two aerofoil sections had smooth leading and trailing edges. The pilot could adjust
11570-422: The K 47, Karl Plauth . During the trials with the K 47 in 1932, double vertical stabilisers were introduced to give the rear gunner a better field of fire . The main, and what was to be the most distinctive, feature of the Ju 87 was its double-spar inverted gull wings . After Plauth's death, Pohlmann continued the development of the Junkers dive bomber. The Ju A 48 registration D-ITOR, was originally fitted with
11748-553: The Middle Ages military forces used combined arms as a method of winning battles and furthering a war leader or king's long-term goals. Some historians claim that during the Middle Ages there was no strategic or tactical art to military combat. Kelly DeVries uses the Merriam-Webster definition of combat "as a general military engagement". In the pursuit of a leader's goals and self-interest tactical and strategic thinking
11926-539: The Ottomans and led to their rapid and complete collapse. In an advance of 65 miles (105 km), captures were estimated to be "at least 25,000 prisoners and 260 guns". Liddell Hart considered that important aspects of the operation had been the extent to which Ottoman commanders were denied intelligence on the British preparations for the attack through British air superiority and air attacks on their headquarters and telephone exchanges, which paralyzed attempts to react to
12104-543: The Polish campaign, the performance of armored troops, under the influence of Guderian's ideas, won over a number of skeptics who had initially expressed doubt about armored warfare, such as von Rundstedt and Rommel. According to David A. Grossman, by the Twelfth Battle of Isonzo (October–November 1917), while he was conducting a light-infantry operation, Rommel had perfected his maneuver-warfare principles, which were
12282-726: The Red Army began a secret collaboration in the Soviet Union to evade the Treaty of Versailles occupational agent, the Inter-Allied Commission . In 1926 war games and tests began at Kazan and Lipetsk , in the Soviet Russia . The centers served to field-test aircraft and armored vehicles up to the battalion level and housed aerial- and armoured-warfare schools through which officers rotated. After becoming Chancellor of Germany in 1933, Adolf Hitler ignored
12460-631: The Soviet deep battle doctrine, which was based on combining tanks, mobile units (mechanised infantry or cavalry) and infantry, while supported by artillery. In 1963 the United States Marine Corps formalized the concept of the Marine Air-Ground Task Force , which combined Marine aviation and Marine ground units for expeditionary missions. The Vietnam War had a profound influence on the development of
12638-469: The Stuka became an easy target for enemy fighters, but it continued being produced until 1944 for lack of a better replacement. By 1945 ground-attack versions of the Focke-Wulf Fw 190 had largely replaced the Ju 87, but it remained in service until the end of the war in 1945. Germany built an estimated 6,000 Ju 87s of all versions between 1936 and August 1944. Oberst Hans-Ulrich Rudel became
12816-467: The Takeda cavalry while their samurai cut down any enemies who managed to approach melee range. The 17th century saw increasing use of combined arms at lower (regimental) level. King Gustavus Adolphus of Sweden was the proponent of the idea. For fire support he attached teams of "commanded musketeers" to cavalry units and fielded light 3-pounder guns to provide infantry units with organic artillery. In
12994-502: The US Army in Vietnam also learned to combine helicopter operations and airmobile infantry with the armoured and artillery units operating from fire support bases as well as the US brown-water navy and USAF close air support units supporting them. AirLand Battle was the overall conceptual framework that formed the basis of the US Army's European warfighting doctrine from 1982 into
13172-476: The US Army's combined arms doctrine. Due to the very difficult terrain that prevented access to the enemy-held areas of operation , troops were often deployed by air assault . For this reason, US troops in Vietnam saw six times more combat than in preceding wars, due to less time spent on logistic delays. The result: an infantry unit increased in effectiveness by a factor of four for its size, when supported with helicopter-delivered ammunition, food and fuel. In time
13350-602: The V2, was finally fitted with the Jumo 210Aa engine, which a year later was replaced by a Jumo 210 G (W.Nr. 19310). The testing went well, and the pilot, Flight Captain Hesselbach, praised its performance. However, Wolfram von Richthofen , in charge of developing and testing new aircraft in the Technisches Amt, or Technical Service, told the Junkers representative and Construction Office chief engineer Ernst Zindel that
13528-422: The Weserflug company after April 1938, but Junkers continued producing Ju 87 up until March 1940. A long range version of the Ju 87 B was also built, known as the Ju 87 R, the letter being an abbreviation for Reichweite , "(operational) range". They were primarily intended for anti-shipping missions. The Ju 87 R had a B-series airframe with an additional oil tank and fuel lines to the outer wing stations to permit
13706-411: The Western Front, fighting descended into stagnant trench warfare . Generals on both sides applied conventional military thinking to the new weapons and situations that they faced. In these early stages, tactics typically consisted of heavy artillery barrages followed by massed frontal assaults against well entrenched enemies. These tactics were largely unsuccessful and resulted in large loss of life. As
13884-403: The accuracy of the Ju 87's aim. When the aircraft was reasonably close to the target, a light on the contact altimeter (an altimeter equipped with an electrical contact which triggers at a preset altitude) came on to indicate the bomb-release point, usually at a minimum height of 450 m (1,480 ft). The pilot released the bomb and initiated the automatic pull-out mechanism by depressing
14062-624: The advance. The historian James Corum criticised the German leadership for failing to understand the technical advances of the First World War, conducting no studies of the machine gun prior to the war and giving tank production the lowest priority during the war. After Germany's defeat, the Treaty of Versailles limited the Reichswehr to a maximum of 100,000 men, which prevented the deployment of mass armies. The German General Staff
14240-429: The advantage of the horse. Archers provide standoff with their bows or crossbows. Cavalry can maneuver faster and provide fast attack before the enemy has had time to prepare defenses. Peasants are more numerous and cheaper on the royal coffers. Over the long term the army can cross-train and learn the skills of the specialties to increase combat effectiveness . This is known as a combat multiplier today. The combination of
14418-431: The aircraft crashed after it entered an inverted spin during the testing of the terminal dynamic pressure in a dive. The crash prompted a change to a single vertical stabiliser tail design. To withstand strong forces during a dive, heavy plating, along with brackets riveted to the frame and longeron , was fitted to the fuselage. Other early additions included the installation of hydraulic dive brakes that were fitted under
14596-546: The attacks relied on speed and surprise, rather than on weight of numbers. The tactics met with great success in Operation Michael , the German spring offensive of 1918 and restored temporarily the war of movement once the Allied trench system had been overrun. The German armies pushed on towards Amiens and then Paris and came within 120 kilometres (75 mi) before supply deficiencies and Allied reinforcements halted
14774-627: The battlefield and tactical improvements in the British artillery and infantry attack. General Edmund Allenby used infantry to attack the strong Ottoman front line in co-operation with supporting artillery, augmented by the guns of two destroyers. Through constant pressure by infantry and cavalry, two Ottoman armies in the Judean Hills were kept off-balance and virtually encircled during the Battles of Sharon and Nablus (Battle of Megiddo). The British methods induced "strategic paralysis" among
14952-420: The battlefield. Specialist light infantry ( Stosstruppen , "storm troops") were to exploit weak spots to make gaps for larger infantry units to advance with heavier weapons, exploit the success and leave isolated strong points to the troops that were following up. Infiltration tactics were combined with short hurricane artillery bombardments , which used massed artillery. Devised by Colonel Georg Bruchmüller ,
15130-451: The best co-operation between all arms, emphasis was placed on detailed planning, rigid control and adherence to orders. Mechanization of the army, as part of a combined-arms theory of war, was considered a means to avoid mass casualties and the indecisive nature of offensives. The four editions of Field Service Regulations that were published after 1918 held that only combined-arms operations could create enough fire power to enable mobility on
15308-436: The bomb initiated the pull-out, or automatic recovery and climb, upon the deflection of the dive brakes. The pilot could override the system by exerting significant force on the control column and taking manual control. The wing was the most unusual feature. It consisted of a single centre section and two outer sections, each installed using four universal joints. The centre section had a large negative dihedral (anhedral) and
15486-518: The bridges remained intact. Allied air superiority became a significant hindrance to German operations during the later years of the war. By June 1944, the Western Allies had the complete control of the air over the battlefield, and their fighter-bomber aircraft were very effective at attacking ground forces. On D-Day, the Allies flew 14,500 sorties over the battlefield area alone, not including sorties flown over Northwestern Europe. Against them
15664-555: The centre of Wellington's line, but unlike most of the rest of Wellington's infantry were in a declivity on the exposed side of the Mont-Saint-Jean escarpment . Exposed as they were, they were forced to stand in square for most of the day for fear of cavalry attack and so made an easy dense target for Napoleon's massed artillery. The development of modern combined arms tactics began in the First World War . Early in
15842-413: The centrifugal forces. At less than 4 g, no visual problems or loss of consciousness were experienced. Above 6 g, 50% of pilots suffered visual problems, or greyout . With 40%, vision vanished altogether from 7.5 g upwards and black-out sometimes occurred. Despite this blindness, the pilot could maintain consciousness and was capable of "bodily reactions". After more than three seconds, half
16020-463: The cockpit. The fuel system comprised two fuel tanks between the main (forward) and rear spars of the (inner) anhedral wing section of the port and starboard wings, each with 240-litre (63 US gal) capacity. The tanks also had a predetermined limit which, if passed, would warn the pilot via a red warning light in the cockpit. The fuel was injected via a pump from the tanks to the engine. Should this shut down, it could be pumped manually using
16198-424: The command of Panzer divisions". Schwerpunktprinzip was a heuristic device (conceptual tool or thinking formula) that was used in the German Army from the nineteenth century to make decisions from tactics to strategy about priority. Schwerpunkt has been translated as center of gravity , crucial , focal point and point of main effort . None of those forms is sufficient to describe the universal importance of
16376-445: The concept of "supporting arms" as follows: Combined arms hits the enemy with two or more arms simultaneously in such a manner that the actions he must take to defend himself from one make him more vulnerable to another. In contrast, supporting arms is hitting the enemy with two or more arms in sequence, or if simultaneously, then in such combination that the actions the enemy must take to defend himself from one also defends himself from
16554-434: The continuously changing front, and defeat them in a decisive Vernichtungsschlacht : a battle of annihilation . During the interwar period , aircraft and tank technologies matured and were combined with the systematic application of the traditional German tactic of Bewegungskrieg ( maneuver warfare ), involving the deep penetrations and the bypassing of enemy strong points to encircle and destroy opposing forces in
16732-435: The coolant flaps. The aircraft then rolled 180°, automatically nosing the aircraft into a dive. Red tabs protruded from the upper surfaces of the wing as a visual indicator to the pilot that, in case of a g-force induced black-out , the automatic dive recovery system would be activated. The Stuka dived at a 60–90° angle, holding a constant speed of 500–600 km/h (310–370 mph) due to dive-brake deployment, which increased
16910-438: The course of the Second World War. Early German successes were conducted when Allied aircraft could not make a significant impact on the battlefield. In May 1940, there was near parity in numbers of aircraft between the Luftwaffe and the Allies, but the Luftwaffe had been developed to support Germany's ground forces, had liaison officers with the mobile formations and operated a higher number of sorties per aircraft. In addition,
17088-565: The crew could communicate with the glider crew by way of the tow rope. The R-4 differed from the R-2 in the Jumo 211J powerplant. Known prototypes On 18 August 1937, the RLM decided to introduce the Ju 87 Tr(C). The Ju 87 C was intended to be a dive and torpedo bomber for the Kriegsmarine . The type was ordered into prototype production and available for testing in January 1938. Testing
17266-469: The design's characteristic transverse strut-braced, large-planform undercarriage "trousers", not used on the Ju 87B versions and onward. The pilot relied on the Revi C 21C gun sight for the two MG 17s. The gunner had a single 7.92 mm (0.312 in) MG 15, with 14 drums of ammunition, each containing 75 rounds. This represented a 150-round increase in this area over the Ju 87 A-0. The A-1 was also fitted with
17444-403: The different skills help provide a commander the flexibility to minimize risk when it comes to engagements. The overall objective of any military force is to fight and win, while also preserving the largest number of combatants to carry on the larger strategic aims of the king. This can be seen in some of the engagements during the Middle Ages. Generally the savanna cavalries of West Africa used
17622-402: The direct command of the army commander which could be sent in support of any corps or division of a corps to increase any arm which the army general considered necessary. The great French cavalry charge commanded by Marshal Ney during the battle failed to break Wellington's squares of infantry and Ney's failure to supplement his cavalry with sufficient horse artillery to break the squares open
17800-477: The early war period. Seeckt, who believed in the Prussian tradition of mobility, developed the German army into a mobile force and advocated technical advances that would lead to a qualitative improvement of its forces and better coordination between motorized infantry, tanks, and planes. The British Army took lessons from the successful infantry and artillery offensives on the Western Front in late 1918. To obtain
17978-418: The eighteenth century, the concept of the legion was revived. Legions now consisted of musketeers , light infantry , dragoons and artillery in a brigade sized force. These legions often combined professional military personnel with militia . Perhaps the most notable example is the use of light cavalry , light infantry and light horse artillery in advance detachments by France's La Grande Armée during
18156-406: The elevator and rudder trim tabs in flight, and the tail was connected to the landing flaps, which were positioned in two parts between the ailerons and fuselage. The A-0 also had a flatter engine cowling, which gave the pilot a much better field of vision. In order for the engine cowling to be flattened, the engine was set down nearly 0.25 m (9.8 in). The fuselage was also lowered along with
18334-458: The exercises carried out in England and our own experience with mock-ups had persuaded me that the tanks would never be able to produce their full effect until the other weapons on whose support they must inevitably rely were brought up to their standard of speed and of cross-country performance. In such formation of all arms, the tanks must play primary role, the other weapons being subordinated to
18512-496: The fin to produce the noise after release. The trumpets were a suggestion from Udet, but some authors say the idea originated from Adolf Hitler . The Ju 87 B-2s that followed had some improvements and were built in several variants that included ski-equipped versions (the B-1 also had this modification) and at the other end, with a tropical operation kit called the Ju 87 B-2 trop. Italy's Regia Aeronautica received B-2s and named them
18690-442: The final German offensive operation in the west, Operation Wacht am Rhein , was planned to take place during poor weather to minimise interference by Allied aircraft. Under those conditions, it was difficult for German commanders to employ the "armored idea", if at all. Blitzkrieg is vulnerable to an enemy that is robust enough to weather the shock of the attack and does not panic at the idea of enemy formations in its rear area. That
18868-477: The first half of the Second World War that is often hailed as a new method of warfare. The word, meaning "lightning war" or "lightning attack" in its strategic sense describes a series of quick and decisive short battles to deliver a knockout blow to an enemy state before it can fully mobilize. Tactically, blitzkrieg is a coordinated military effort by tanks, motorized infantry, artillery and aircraft, to create an overwhelming local superiority in combat power, to defeat
19046-405: The first time. By 15 December 1939, 915 arrested landings on dry land had been made. It was found that the arresting gear winch was too weak and had to be replaced. Tests showed the average braking distance was 20–35 metres (66–115 ft). The Ju 87 V11 was designated C-0 on 8 October 1938. It was fitted out with standard Ju 87 C-0 equipment and better wing-folding mechanisms. The "carrier Stuka"
19224-414: The fuel tanks were located. At the rear of the cockpit, the bulkhead was covered by a canvas cover which could be breached by the crew in an emergency, enabling them to escape into the main fuselage. The canopy was split into two sections and joined by a strong welded steel frame. The canopy itself was made of Plexiglas and each compartment had its own "sliding hood" for the two crew members. The engine
19402-659: The ground assault phase, tanks and other armoured fighting vehicles supported by attack aircraft swept over remaining forces. The front line moved forward at upwards of 40–50 km/h at the upper limit of the Army's tracked vehicles. In 2000, the US Army began developing a new set of doctrines intended to use information superiority to wage warfare. Six pieces of equipment were crucial for this: AWACS (for Airborne early warning and control ), JSTARS (for Airborne ground surveillance ), GPS , VHF SINCGARS (for ground and airborne communications), and ruggedized computers . The mix
19580-624: The group of tactics as "Bewegungskrieg" (Maneuver Warfare). The term seems to have been rarely used in the German military press before 1939, and recent research at the German Militärgeschichtliches Forschungsamt , at Potsdam , found it in only two military articles from the 1930s. Both used the term to mean a swift strategic knockout, rather than a radically new military doctrine or approach to war. The first article (1935) dealt primarily with supplies of food and materiel in wartime. The term blitzkrieg
19758-413: The gunner's position, allowing the gunner a better field of fire. The RLM ordered seven A-0s initially, but then increased the order to 11. Early in 1937, the A-0 was tested with varied bomb loads. The underpowered Jumo 210A, as pointed out by von Richthofen, was insufficient, and was quickly replaced with the Jumo 210D engine. The A-1 differed from the A-0 only slightly. As well as the installation of
19936-561: The gunner). The Ju 87 A-2 was retrofitted with the Jumo 210Da fitted with a two-stage supercharger . The only further significant difference between the A-1 and A-2 was the H-PA-III controllable-pitch propeller . By mid-1938, 262 Ju 87 As had been produced, 192 from the Junkers factory in Dessau and a further 70 from Weser Flugzeugbau ("Weserflug" – WFG) in Lemwerder near Bremen. The new, more powerful, Ju 87B model started to replace
20114-423: The heavy cavalry could smash and break the enemy line by achieving local superiority. The early Republic Roman Legion was a combined arms force and consisted of five classes of troops. Lightly equipped velites acted as skirmishers armed with light javelins. The hastati and principes formed the main attacking strength of the legion with swords and pila , whilst the triarii formed the defensive backbone of
20292-480: The high command that every tank in the German armored force must be equipped with a radio. At the start of World War II, only the German Army was thus prepared with all tanks being "radio-equipped". That proved critical in early tank battles in which German tank commanders exploited the organizational advantage over the Allies that radio communication gave them. All Allied armies would later copy that innovation. During
20470-469: The huge armies of conscripts and reservists that had fought the First World War, and he sought to use tanks, mechanized forces and aircraft to allow a smaller number of highly trained soldiers to have greater impact in battle. His views endeared him little to the French high command, but, according to historian Henrik Bering, were studied with great interest by Heinz Guderian . In 1916, General Alexei Brusilov had used surprise and infiltration tactics during
20648-435: The idea that it was a military concept. Kielmansegg asserted that what many regarded as blitzkrieg was nothing more than "ad hoc solutions that simply popped out of the prevailing situation". Kurt Student described it as ideas that "naturally emerged from the existing circumstances" as a response to operational challenges. In 2005, the historian Karl-Heinz Frieser summarized blitzkrieg as the result of German commanders using
20826-554: The inherent danger of the attacking force overextending its supply lines and can be defeated by a determined foe who is willing and able to sacrifice territory for time in which to regroup and rearm, as the Soviets did on the Eastern Front, as opposed to, for example, the Dutch, who had no territory to sacrifice. Tank and vehicle production was a constant problem for Germany. Indeed, late in the war, many panzer "divisions" had no more than
21004-424: The initiative, exploited weaknesses and acted before the opposing forces could respond. Central to that was the decision cycle (tempo). Through superior mobility and faster decision-making cycles, mobile forces could act faster than the forces opposing them. Directive control was a fast and flexible method of command. Rather than receiving an explicit order, a commander would be told of his superior's intent and
21182-705: The invasions of Belgium , The Netherlands and France and, by 1940, the term blitzkrieg was being extensively used in Western media. Blitzkrieg operations capitalised on surprise penetrations, such as that in the Ardennes forest, the Allies' general lack of preparedness, and their inability to match the pace of the German attack. During the Battle of France , the French made attempts to reform defensive lines along rivers but were frustrated when German forces arrived first and pressed on. Despite being common in German and English-language journalism during World War II ,
21360-409: The large-scale industrialisation that they required. Robert Watt (2008) wrote that blitzkrieg has little in common with Soviet deep battle. In 2002, H. P. Willmott had noted that deep battle contained two important differences from blitzkrieg by being a doctrine of total war, not of limited operations, and rejecting decisive battle in favour of several large simultaneous offensives. The Reichswehr and
21538-431: The late 1990s. AirLand Battle emphasized close coordination between land forces acting as an aggressively maneuvering defense, and air forces attacking rear-echelon forces feeding those front line enemy forces. In the 1991 Gulf War , General Schwarzkopf used a mix of strikes by fixed-wing aircraft including carpet bombing and precision bombing in combination with large numbers of strikes by attack helicopters . During
21716-411: The latest technology in the most advantageous way, according to traditional military principles, and employing "the right units in the right place at the right time". Modern historians now understand blitzkrieg as the combination of traditional German military principles, methods and doctrines of the 19th century with the military technology of the interwar period. Modern historians use the term casually as
21894-463: The legion fighting as spearmen (initially as a denser Greek phalanx and later as a looser spear wall formation) with long spears and large shields. The fifth class of troops were the equites (the cavalry), which were used for scouting, pursuit and to guard the flanks. The Legion then became notionally a unit of heavy infantrymen armed with just sword and pilum, and fielded with a small attached auxiliary skirmishers and missile troops, and incorporated
22072-499: The machine's speed was increased to 280 km/h (170 mph) at ground level and 290 km/h (180 mph) at 1,250 m (4,100 ft), while maintaining its good handling ability. The Ju 87 was a single-engined all-metal cantilever monoplane . It had a fixed undercarriage and could carry a two-person crew. The main construction material was duralumin , and the external coverings were made of duralumin sheeting. Parts that were required to be of strong construction, such as
22250-484: The major basis for responding to blitzkrieg attacks in the future. Deployment in depth , or permitting enemy or "shoulders" of a penetration, was essential to channelling the enemy attack; artillery, properly employed at the shoulders, could take a heavy toll on attackers. Allied forces in 1940 lacked the experience to develop those strategies successfully, which resulted in the French armistice with heavy losses, but those strategies characterized later Allied operations. At
22428-519: The most successful Stuka pilot and the most highly decorated German pilot of the war. The Ju 87's principal designer, Hermann Pohlmann , held the opinion that any dive-bomber design needed to be simple and robust. This led to many technical innovations, such as the retractable undercarriage being discarded in favour of one of the Stuka's distinctive features, its fixed and " spatted " undercarriage. Pohlmann continued to carry on developing and adding to his ideas and those of Dipl Ing Karl Plauth (Plauth
22606-446: The need of the ground forces. In fact, far from it being a specialist panzer spearhead arm, less than 15 percent of the Luftwaffe was intended for close support of the army in 1939. Methamphetamine , known as "pervitin," use is believed to have played a role in the speed of Germany's initial Blitzkrieg since military success with combined arms demanded long hours of continuous operations with minimal rest. The concepts associated with
22784-401: The only problem was with the small radiator, which caused the engine to overheat. The Ju 87 V1, powered by a Rolls-Royce Kestrel V12 cylinder liquid-cooled engine, and with a twin tail, crashed on 24 January 1936 at Kleutsch near Dresden , killing Junkers' chief test pilot, Willy Neuenhofen, and his engineer, Heinrich Kreft. The square twin fins and rudders proved too weak; they collapsed and
22962-524: The open with cavalry. Likewise Scottish sheltrons – which had been developed to counter the charges by English heavy cavalry, and had been used successfully against English cavalry at the Battle of Stirling Bridge (1297) – were destroyed at the Battle of Falkirk (1298) by English archers acting in concert with mounted knights. Both Hastings and Falkirk showed how combined arms could be used to defeat enemies relying on only one arm. The English victories of Crécy , Poitiers and Agincourt were examples of
23140-488: The opponent and break through its defences. Blitzkrieg as used by Germany had considerable psychological or "terror" elements, such as the Jericho Trompete , a noise-making siren on the Junkers Ju 87 dive bomber, to affect the morale of enemy forces. The devices were largely removed when the enemy became used to the noise after the Battle of France in 1940, and instead, bombs sometimes had whistles attached. It
23318-517: The other(s). Though the lower- echelon units of a combined arms team may be of similar types, a balanced mixture of such units are combined into an effective higher-echelon unit, whether formally in a table of organization or informally in an ad hoc solution to a battlefield problem. For example, an armoured division , the modern paragon of combined arms doctrine, consists of a mixture of infantry, tank , artillery , reconnaissance , and helicopter units, all of which are co-ordinated and directed by
23496-461: The outbreak of World War II , the Luftwaffe had 336 Ju 87 B-1s on hand. The B-1 was also fitted with "Jericho trumpets", essentially sirens driven by propellers with a diameter of 0.7 m (2.3 ft) The devices caused a loss of 20–25 km/h (12–15 mph) through drag, and over time the sirens were no longer installed on many units, although they remained in use to various extent. As an alternative, some bombs were fitted with whistles on
23674-610: The outbreak of World War II. It led air assaults during the Invasion of Poland in September 1939. Stukas proved critical to the rapid conquest of Norway , the Netherlands , Belgium , and France in 1940. Though sturdy, accurate, and very effective against ground targets, the Stuka was, like many other dive bombers of the period, vulnerable to fighter aircraft. During the Battle of Britain of 1940–1941, its lack of manoeuvrability, speed, or defensive armament meant that it required
23852-465: The outer surfaces a positive dihedral. This created the inverted gull, or "cranked", wing pattern along the leading edge. The shape of the wing improved the pilot's ground visibility and also allowed a shorter undercarriage height. The centre section protruded by only 3 m (9 ft 10 in) on either side. The offensive armament was two 7.92 mm (.312 in) MG 17 machine guns fitted one in each wing outboard of undercarriage, operated by
24030-671: The provisions of the Treaty of Versailles. Within the Wehrmacht, which was established in 1935, the command for motorized armored forces was named the Panzerwaffe in 1936. The Luftwaffe , the German air force, was officially established in February 1935, and development began on ground-attack aircraft and doctrines. Hitler strongly supported the new strategy. He read Guderian's 1937 book Achtung – Panzer! and upon observing armored field exercises at Kummersdorf , he remarked, "That
24208-562: The rapidly-deteriorating situation. Norman Stone detects early blitzkrieg operations in offensives by French Generals Charles Mangin and Marie-Eugène Debeney in 1918. However, French doctrine in the interwar years became defence-oriented. Colonel Charles de Gaulle advocated concentration of armor and airplanes. His opinions appeared in his 1934 book Vers l'Armée de métier ("Towards the Professional Army"). Like von Seeckt, de Gaulle concluded that France could no longer maintain
24386-430: The requirements of the armor. It would be wrong to include tanks in infantry divisions; what was needed were armored divisions which would include all the supporting arms needed to allow the tanks to fight with full effect. Guderian believed that developments in technology were required to support the theory, especially by equipping armored divisions, tanks foremost, with wireless communications. Guderian insisted in 1933 to
24564-473: The role that his unit was to fill in that concept. The method of execution was then a matter for the discretion of the subordinate commander. The staff burden was reduced at the top and spread among tiers of command with knowledge about their situation. Delegation and the encouragement of initiative aided implementation, and important decisions could be taken quickly and communicated verbally or with only brief written orders. The last part of an offensive operation
24742-481: The so-called Blitzkrieg victories of 1939–1942, as well as providing Stuka pilots with audible feedback as to speed. The Stuka's design included several innovations, including automatic pull-up dive brakes under both wings to ensure that the aircraft recovered from its attack dive even if the pilot blacked out from the high g-forces , or suffered from target fixation . The Ju 87 operated with considerable success in close air support and anti-shipping roles at
24920-433: The storm and fight out of encirclements failed because of the Soviets' ability to continue to feed armored units into the attack, maintain the mobility and strength of the offensive and arrive in force deep in the rear areas faster than the Germans could regroup. Although effective in quick campaigns against Poland and France, mobile operations could not be sustained by Germany in later years. Strategies based on maneuver have
25098-614: The story, Heinkel warned Udet about the propeller's fragility. Udet failed to consider this, so in a dive, the engine oversped and the propeller broke away. Immediately after this incident, Udet announced the Stuka the winner of the development contest. Despite being chosen, the design was still lacking and drew frequent criticism from Wolfram von Richthofen. Testing of the V4 prototype (A Ju 87 A-0) in early 1937 revealed several problems. The Ju 87 could take off in 250 m (820 ft) and climb to 1,875 m (6,152 ft) in eight minutes with
25276-489: The subjects passed out. The pilot would regain consciousness two or three seconds after the centrifugal forces had dropped below 3 g and had lasted no longer than three seconds. In a crouched position, pilots could withstand 7.5 g and were able to remain functional for a short duration. In this position, Junkers concluded that 2 ⁄ 3 of pilots could withstand 8 g and perhaps 9 g for three to five seconds without vision defects which, under war conditions,
25454-444: The target with the sight of the fixed gun. The heavy bomb was swung down clear of the propeller on crutches prior to release. Flying at 4,600 m (15,100 ft), the pilot located his target through a bombsight window in the cockpit floor. The pilot moved the dive lever to the rear, limiting the "throw" of the control column. The dive brakes were activated automatically, the pilot set the trim tabs, reduced his throttle and closed
25632-474: The targets for requested air and artillery assets. Within a few minutes, on station aircraft would direct their missions to cover the ground vehicle. Within a half-hour heavy attack forces would concentrate to relieve the isolated vehicle. In an hour and a half the relieved vehicle would be resupplied. In 2020, the Israel Defense Forces established a dedicated combined arms battalion to test
25810-651: The term blitzkrieg (deep penetrations by armor, large encirclements, and combined arms attacks) were largely dependent upon terrain and weather conditions. Wherever the ability for rapid movement across "tank country" was not possible, armored penetrations often were avoided or resulted in failure. The terrain would ideally be flat, firm, unobstructed by natural barriers or fortifications, and interspersed with roads and railways. If it were instead hilly, wooded, marshy, or urban, armor would be vulnerable to infantry in close-quarters combat and unable to break out at full speed. Additionally, units could be halted by mud ( thawing along
25988-479: The term and the concept of Schwerpunktprinzip . Every unit in the army, from the company to the supreme command, decided on a Schwerpunkt by schwerpunktbildung , as did the support services, which meant that commanders always knew what was the most important and why. The German army was trained to support the Schwerpunkt even when risks had to be taken elsewhere to support the point of main effort and to attack with overwhelming firepower. Schwerpunktbildung allowed
26166-604: The term in German occurred in Die Deutsche Kriegsstärke (German War Strength) by Fritz Sternberg , a Jewish Marxist political economist and refugee from Nazi Germany, published in 1938 in Paris and in London as Germany and a Lightning War . Sternberg wrote that Germany was not prepared economically for a long war but might win a quick war ( "Blitzkrieg" ). He did not go into detail about tactics or suggest that
26344-461: The twin radio masts of the "A" version with a single mast mounted further forward on the "greenhouse" canopy, and much simpler, lighter-weight wheel "spats" used from the -B version onwards, discarding the transverse strut bracing of the "A" version's maingear design. This new design was again tested in Spain, and after proving its abilities there, production was ramped up to 60 per month. As a result, by
26522-418: The use of two 300 litres (79 US gal) standardised capacity under-wing drop tanks , used by a wide variety of Luftwaffe aircraft through most of the war. This increased fuel capacity to 1,080 litres (290 US gal) (500 litres in main fuel tank of which 480 litres were usable + 600 litres from drop tanks). To prevent overload conditions, bomb carrying ability was often restricted to
26700-645: The very same ones that were applied during the blitzkrieg against France in 1940 and were repeated in the Coalition ground offensive against Iraq in the 1991 Gulf War . During the Battle of France and against his staff advisor's advice, Hitler ordered that everything should be completed in a few weeks. Fortunately for the Germans, Rommel and Guderian disobeyed the General Staff's orders (particularly those of General Paul Ludwig Ewald von Kleist ) and forged ahead making quicker progress than anyone had expected, on
26878-490: The viability of full integration of infantry, armor, and aircraft into a single battalion command structure. The unit fields Merkava Mk.4 main battle tanks, F-16D multirole fighters, Heron and Hermes 450 drones, and AH-64 Apache helicopters. Junkers Ju 87 The Junkers Ju 87 , popularly known as the " Stuka ", is a German dive bomber and ground-attack aircraft . Designed by Hermann Pohlmann , it first flew in 1935. The Ju 87 made its combat debut in 1937 with
27056-405: The visual impairments most during "pull-up" from a dive. Eric "Winkle" Brown RN , a British test pilot and Commanding Officer of No. 1426 Flight RAF (the captured enemy aircraft Flight), tested the Ju 87 at RAE Farnborough . He said of the Stuka, "I had flown a lot of dive-bombers and it's the only one that you can dive truly vertically. Sometimes with the dive-bombers ... maximum dive
27234-521: The war and technological difficulties. So the Luftwaffe settled on the Focke-Wulf Fw 190 fighter aircraft, with the Fw 190F becoming the ground-attack version. The Fw 190F started to replace the Ju 87 for day missions in 1943, but the Ju 87 continued to be used as a night nuisance-raider until the end of the war. The second prototype had a redesigned single vertical stabiliser and a 610 PS (601.7 hp; 448.7 kW) Jumo 210 A engine installed, and later
27412-468: The war progressed new combined arms tactics were developed, often described then as the "all arms battle". These included direct close artillery fire support for attacking soldiers (the creeping barrage ), air support and mutual support of tanks and infantry. One of the first instances of combined arms was the Battle of Cambrai , in which the British used tanks, artillery, infantry, small arms and air power to break through enemy lines. Previously such
27590-451: The war, the Reichswehr expanded and improved infiltration tactics. The commander in chief, Hans von Seeckt , argued that there had been an excessive focus on encirclement and emphasised speed instead. Seeckt inspired a revision of Bewegungskrieg (maneuver warfare) thinking and its associated Auftragstaktik in which the commander expressed his goals to subordinates and gave them discretion in how to achieve them. The governing principle
27768-493: The way "inventing the idea of Blitzkrieg". It was Rommel who created the new archetype of Blitzkrieg by leading his division far ahead of flanking divisions. MacGregor and Williamson remark that Rommel's version of blitzkrieg displayed a significantly better understanding of combined-arms warfare than that of Guderian. General Hermann Hoth submitted an official report in July 1940 which declared that Rommel had "explored new paths in
27946-437: The word Blitzkrieg was never used as an official military term by the Wehrmacht , except for propaganda, and it was never officially adopted it as a concept or doctrine.. According to David Reynolds , " Hitler himself called the term Blitzkrieg "a completely idiotic word" ( ein ganz blödsinniges Wort )". Some senior German officers, including Kurt Student , Franz Halder and Johann Adolf von Kielmansegg , even disputed
28124-538: The word Blitzkrieg ". After the German failure in the Soviet Union in 1941, the use of the term began to be frowned upon in Nazi Germany, and Hitler then denied ever using the term and said in a speech in November 1941, "I have never used the word Blitzkrieg , because it is a very silly word". In early January 1942, Hitler dismissed it as "Italian phraseology". In 1914, German strategic thinking derived from
28302-461: The writings of Carl von Clausewitz (1 June 1780 – 16 November 1831), Helmuth von Moltke the Elder (26 October 1800 – 24 April 1891) and Alfred von Schlieffen (28 February 1833 – 4 January 1913), who advocated maneuver, mass and envelopment to create the conditions for a decisive battle ( Vernichtungsschlacht ). During the war, officers such as Willy Rohr developed tactics to restore maneuver on
28480-407: Was "the higher the authority, the more general the orders were"; it was the responsibility of the lower echelons to fill in the details. Implementation of higher orders remained within limits that were determined by the training doctrine of an elite officer corps. Delegation of authority to local commanders increased the tempo of operations, which had great influence on the success of German armies in
28658-582: Was abolished by the treaty but continued covertly as the Truppenamt (Troop Office) and was disguised as an administrative body. Committees of veteran staff officers were formed within the Truppenamt to evaluate 57 issues of the war to revise German operational theories. By the time of the Second World War, their reports had led to doctrinal and training publications, including H. Dv. 487, Führung und Gefecht der verbundenen Waffen ("Command and Battle of
28836-408: Was acceptable. During tests with the Ju 87 A-2, new technologies were tried out to reduce the effects of g. The pressurised cabin was of great importance during this research. Testing revealed that at high altitude, even 2 g could cause death in an unpressurised cabin and without appropriate clothing. This new technology, along with special clothing and oxygen masks, was researched and tested. When
29014-564: Was built by AB Flygindustri in Sweden and secretly brought to Germany in late 1934. It was to have been completed in April 1935, but, due to the inadequate strength of the airframe, construction took until October 1935. The mostly complete Ju 87 V1 W.Nr. 4921 (less non-essential parts) took off for its maiden flight on 17 September 1935. The aircraft was later given the registration D-UBYR. The flight report, by Hauptmann Willy Neuenhofen , stated
29192-477: Was described as an attractive idea for Germany but difficult to achieve on land under modern conditions (especially against systems of fortification like the Maginot Line ) unless an exceptionally high degree of surprise could be achieved. The author vaguely suggested that a massive strategic air attack might hold out better prospects, but the topic was not explored in detail. A third relatively early use of
29370-459: Was flexible and could carry out both operational-tactical, and strategic bombing. Flexibility was the strength of the Luftwaffe in 1939 to 1941. Paradoxically, that became its weakness. While Allied Air Forces were tied to the support of the Army, the Luftwaffe deployed its resources in a more general operational way. It switched from air superiority missions to medium-range interdiction, to strategic strikes to close support duties, depending on
29548-514: Was given two months and was to begin in February and end in April 1938. The prototype V10 was to be a fixed wing test aircraft, while the following V11 would be modified with folding wings . The prototypes were Ju 87 B-0 airframes powered by Jumo 211 A engines. Owing to delays, the V10 was not completed until March 1938. It first flew on 17 March and was designated Ju 87 C-1. On 12 May, the V11 also flew for
29726-423: Was how to best use the cooperating units, variously armed with side-arms, spears, or missile weapons in order to coordinate an attack to disrupt and then destroy the enemy. Philip II of Macedon greatly improved upon the limited combined arms tactics of the Greek city-states and combined the newly created Macedonian phalanx with heavy cavalry and other forces. The phalanx would hold the opposing line in place, until
29904-404: Was initially supposed to have dive bombing capabilities, a requirement that contributed to the failure of the design, with the requirement not rescinded until September 1942 by Göring. Once the Stuka became too vulnerable to fighter opposition on all fronts, work was done to develop a replacement. None of the dedicated close-support designs on the drawing board progressed far due to the impact of
30082-508: Was installed, replacing the R-1s Jumo 211A. Due to an increase in overall weight by 700 kg (1,500 lb), the Ju 87 R-2 was 30 km/h (19 mph) slower than the Ju 87 B-1 and had a lower service ceiling. The Ju 87 R-2 had an increased range advantage of 360 km (220 mi). The R-3 and R-4 were the last R variants developed. Only a few were built. The R-3 was an experimental tug for gliders and had an expanded radio system so
30260-685: Was killed in a flying accident in November 1927), and produced the Ju A 48, which underwent testing on 29 September 1928. The military version of the Ju A 48 was designated the Ju K 47 . After the Nazis came to power, the design was given priority. Despite initial competition from the Henschel Hs 123 , the Reichsluftfahrtministerium (RLM/German aviation ministry) turned to the designs of Herman Pohlmann of Junkers and co-designer of
30438-582: Was later applied to the bombing of Britain, particularly London, hence " The Blitz ". The German popular press followed suit nine months later, after the Fall of France in 1940; thus, although the word had first been used in Germany, it was popularized by British journalism. Heinz Guderian referred to it as a word coined by the Allies: "as a result of the successes of our rapid campaigns our enemies ... coined
30616-463: Was mounted on two main support frames that were supported by two tubular struts . The frame structure was triangulated and emanated from the fuselage. The main frames were bolted onto the engine's top quarter. In turn, the frames were attached to the firewall by universal joints . The firewall itself was constructed from asbestos mesh with dural sheets on both sides. All conduits passing through had to be arranged so that no harmful gases could penetrate
30794-550: Was not liked by all pilots. Helmut Mahlke later said that he and his unit disconnected the system because it allowed the enemy to predict the Ju 87's recovery pattern and height, making it easier for ground defences to hit an aircraft. Physical stress on the crew was severe. Human beings subjected to more than 5g in a seated position will suffer vision impairment in the form of a grey veil known to Stuka pilots as "seeing stars". They lose vision while remaining conscious; after five seconds, they black out. The Ju 87 pilots experienced
30972-548: Was provided in the form of the dive bomber and medium bomber , which would support the focal point of attack from the air. German successes are closely related to the extent to which the German Luftwaffe could control the air war in early campaigns in Western and Central Europe and in the Soviet Union. However, the Luftwaffe was a broadly based force with no constricting central doctrine other than its resources should be used generally to support national strategy. It
31150-521: Was the destruction of unsubdued pockets of resistance, which had been enveloped earlier and bypassed by the fast-moving armored and motorized spearheads. The Kesselschlacht ("cauldron battle") was a concentric attack on such pockets. It was there that most losses were inflicted upon the enemy, primarily through the mass capture of prisoners and weapons. During Operation Barbarossa , huge encirclements in 1941 produced nearly 3.5 million Soviet prisoners, along with masses of equipment. Close air support
31328-579: Was unacceptable for those reasons. Pilots also complained that navigation and powerplant instruments were mixed together, and were not easy to read, especially in combat. Despite this, pilots praised the aircraft's handling qualities and strong airframe. These problems were to be resolved by installing the DB 600 engine, but delays in development forced the installation of the Jumo 210 D inverted V-12 engine. Flight testing began on 14 August 1936. Subsequent testing and progress fell short of Richthofen's hopes, although
31506-409: Was used along with taking advantage of the terrain and weather in choosing when and where to give battle. The simplest example is the combination of different specialties such as archers, infantry, cavalry (knights or shock mounted troops), and even peasant militia. At times, each force fought on its own and won or lost depending on the opposing military competence. During the Middle Ages leaders utilized
31684-402: Was used in reference to German efforts to win a quick victory in the First World War but was not associated with the use of armored, mechanized or air forces. It argued that Germany must develop self-sufficiency in food because it might again prove impossible to deal a swift knockout to its enemies, which would lead to a long war. In the second article (1938), launching a swift strategic knockout
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