109-689: 16,714 Allied airmen killed (8,536 members of the USAAF, and 8,178 flying under the command of the RAF) Civilian deaths: Airborne assault British Sector American Sector Normandy landings American Sector Anglo-Canadian Sector Logistics Ground campaign American Sector Anglo-Canadian Sector Breakout Air and Sea operations Supporting operations Aftermath Luxembourg The Netherlands Belgium France Britain 1941–1943 1944–1945 Germany Strategic campaigns Operation Overlord
218-633: A second front in Western Europe. Churchill declined because he felt that even with American help the British did not have adequate forces to do it, and he wished to avoid costly frontal assaults such as those that had occurred at the Somme and Passchendaele in World War I . Two tentative plans code-named Operation Roundup and Operation Sledgehammer were put forward for 1942–43, but neither
327-439: A badly scattered drop) but two of its groups concentrated on glider missions. By the end of April joint training with both airborne divisions ceased when Taylor and Ridgway deemed that their units had jumped enough. The 50th TCW did not begin training until April 3 and progressed more slowly, then was hampered when the troops ceased jumping. A divisional night jump exercise for the 101st Airborne scheduled for May 7, Exercise Eagle,
436-505: A blocking position on the northern approaches to Sainte-Mère-Église with a single platoon while the rest reinforced the 3rd Battalion when it was counterattacked at mid-morning. The 1st Battalion did not achieve its objectives of capturing bridges over the Merderet at la Fière and Chef-du-Pont, despite the assistance of several hundred troops from the 507th and 508th PIRs. Fall of France Too Many Requests If you report this error to
545-625: A compromise was reached. Because of the heavier German presence, Bradley, the First Army commander, wanted the 82nd Airborne Division landed close to the 101st Airborne Division for mutual support if needed. Major General J. Lawton Collins , commanding the VII Corps , however, wanted the drops made west of the Merderet to seize a bridgehead. On May 27 the drop zones were relocated 10 miles (16 km) east of Le Haye-du-Puits along both sides of
654-581: A day-long battle failed to take Saint-Côme-du-Mont and destroy the highway bridges over the Douve. The glider battalions of the 101st's 327th Glider Infantry Regiment were delivered by sea and landed across Utah Beach with the 4th Infantry Division. On D-Day its third battalion, the 1st Battalion 401st GIR, landed just after noon and bivouacked near the beach. By the evening of June 7, the other two battalions were assembled near Sainte Marie du Mont . The 82nd Airborne's drop, mission "Boston", began at 01:51. It
763-1238: A few divisions on the Alpine frontier." The 1st SS Panzer Division Leibstandarte SS Adolf Hitler , 9th , 11th , 19th and 116th Panzer divisions, alongside the 2nd SS Panzer Division "Das Reich" , had only arrived in March–May 1944 to France for extensive refit after being badly damaged during the Dnieper-Carpathian Offensive. Seven of the eleven panzer or panzergrenadier divisions stationed in France were still not fully operational or only partially mobile in early June 1944. American airborne landings in Normandy Airborne assault British Sector American Sector Normandy landings American Sector Anglo-Canadian Sector Logistics Ground campaign American Sector Anglo-Canadian Sector Breakout Air and Sea operations Supporting operations Aftermath American airborne landings in Normandy were
872-616: A few key officers were held over for continuity. The 14 groups assigned to IX TCC were a mixture of experience. Four had seen significant combat in the Twelfth Air Force . Four had no combat experience but had trained together for more than a year in the United States. Four others had been in existence less than nine months and arrived in the United Kingdom one month after training began. One had experience only as
981-606: A front line from Caumont-l'Éventé to the south-east of Caen in order to protect the American flank, while establishing airfields near Caen. Possession of Caen and its surroundings would give the Anglo-Canadian forces a suitable staging area for a push south to capture the town of Falaise . A secure lodgement would be established and an attempt made to hold all territory captured north of the Avranches -Falaise line during
1090-532: A large-scale lodgement on the Continent. The first phase, the amphibious invasion and establishment of a secure foothold, was code-named Operation Neptune and is often referred to as "D-Day". To gain the required air superiority needed to ensure a successful invasion, the Allies launched a strategic bombing campaign (codenamed Pointblank ) to target German aircraft-production, fuel supplies, and airfields. Under
1199-410: A mile away near St. Germain-de-Varreville. The team was unable to get either its amber halophane lights or its Eureka beacon working until the drop was well in progress. Although the second pathfinder serial had a plane ditch in the sea en route, the remainder dropped two teams near DZ C, but most of their marker lights were lost in the ditched airplane. They managed to set up a Eureka beacon just before
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#17327722815341308-481: A naval convoy approaching Cap d'Antifer (about 80 km from the actual D-Day landings). The illusion was bolstered by a group of small vessels towing barrage balloons . No. 218 Squadron RAF also dropped "window" near Boulogne-sur-Mer in Operation Glimmer . On the same night, a small group of Special Air Service (SAS) operators deployed dummy paratroopers over Le Havre and Isigny. These dummies led
1417-552: A necessary element of the plan for the landings. Information on the exact date and location of the landings was provided only to the topmost levels of the armed forces. Men were sealed into their marshalling areas at the end of May, with no further communication with the outside world. Troops were briefed using maps that were correct in every detail except for the place names, and most were not told their actual destination until they were already at sea. A news blackout in Britain increased
1526-546: A plane load of troops numbering 15-18 men. To achieve surprise, the parachute drops were routed to approach Normandy at low altitude from the west. The serials took off beginning at 22:30 on June 5, assembled into formations at wing and command assembly points, and flew south to the departure point, code-named "Flatbush". There they descended and flew southwest over the English Channel at 500 feet (150 m) MSL to remain below German radar coverage. Each flight within
1635-414: A relatively narrow isthmus , so these sites were rejected. The Pas de Calais, the closest point in continental Europe to Britain, was the location of launch sites for V-1 and V-2 rockets , then still under development. The Germans regarded it as the most likely initial landing zone and accordingly made it the most heavily fortified region; however, it offered the Allies few opportunities for expansion as
1744-484: A route that avoided Allied naval forces and German anti-aircraft defenses along the eastern shore of the Cotentin. On April 12 a route was approved that would depart England at Portland Bill , fly at low altitude southwest over water, then turn 90 degrees to the southeast and come in "by the back door" over the western coast. At the initial point the 82nd Airborne Division would continue straight to La Haye-du-Puits, and
1853-444: A second attack would take place at Calais. Military and civilian personnel alike were aware of the need for secrecy, and the invasion troops were as much as possible kept isolated, especially in the period immediately before the invasion. American general Henry J. F. Miller was sent back to the United States in disgrace after revealing the invasion date at a party. The Germans thought they had an extensive network of spies operating in
1962-464: A serial by chalk numbers (literally numbers chalked on the airplanes to aid paratroopers in boarding the correct airplane), were organized into flights of nine aircraft, in a formation pattern called "vee of vee's" (vee-shaped elements of three planes arranged in a larger vee of three elements), with the flights flying one behind the other. The serials were scheduled over the drop zones at six-minute intervals. The paratroopers were divided into sticks ,
2071-425: A serial was 1,000 feet (300 m) behind the flight ahead. The flights encountered winds that pushed them five minutes ahead of schedule, but the effect was uniform over the entire invasion force and had negligible effect on the timetables. Once over water, all lights except formation lights were turned off, and these were reduced to their lowest practical intensity. Twenty-four minutes 57 miles (92 km) out over
2180-617: A series of military operations carried by the United States as part of Operation Overlord , the invasion of Normandy by the Allies on June 6, 1944, during World War II . In the opening maneuver of the Normandy landings , about 13,100 American paratroopers from the 82nd and 101st Airborne Divisions , then 3,937 glider infantrymen , were dropped in Normandy via two parachute and six glider missions. The divisions were part of
2289-477: A transport (cargo carrying) group and the last had been recently formed. Joint training with airborne troops and an emphasis on night formation flying began at the start of March. The veteran 52nd Troop Carrier Wing (TCW), wedded to the 82nd Airborne, progressed rapidly and by the end of April had completed several successful night drops. The 53rd TCW, working with the 101st, also progressed well (although one practice mission on April 4 in poor visibility resulted in
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#17327722815342398-621: The 12th SS Panzer Division Hitlerjugend , were, for the most part, younger and far better equipped and trained than the static troops stationed along the coast. In early 1944, OB West was significantly weakened by personnel and materiel transfers to the Eastern Front. During the Soviet Dnieper–Carpathian Offensive (24 December 1943 – 17 April 1944), the German High Command was forced to transfer
2507-642: The 21st Army Group , which comprised all the land forces involved in the operation. The Normandy coast in northwestern France was chosen as the site of the landings, with the Americans assigned to land at sectors codenamed Utah and Omaha , the British at Sword and Gold , and the Canadians at Juno . To meet the conditions expected on the Normandy beachhead, special technology was developed, including two artificial ports called Mulberry harbours and an array of specialised tanks nicknamed Hobart's Funnies . In
2616-568: The Allied Expeditionary Air Force , approved the use of the recognition markings on May 17. For the troop carrier aircraft this was in the form of three white and two black stripes, each two feet (60 cm) wide, around the fuselage behind the exit doors and from front to back on the outer wings. A test exercise was flown by selected aircraft over the invasion fleet on June 1, but to maintain security, orders to paint stripes were not issued until June 3. The 300 men of
2725-533: The Armoured Ramp Carrier , which other tanks could use as a bridge to scale sea-walls or to overcome other obstacles. In some areas, the beaches consisted of a soft clay that could not support the weight of tanks. The Bobbin tank unrolled matting over the soft surface, leaving it behind as a route for ordinary tanks. The Assault Vehicle Royal Engineers (AVRE) was a Churchill tank modified for many combat engineering tasks, including laying bridges; it
2834-808: The BBC produced over ten million items, some of which proved useful. The French resistance provided details on Axis troop movements and on construction techniques used by the Germans for bunkers and other defensive installations. Many German radio messages were encoded using the Enigma machine and other enciphering techniques and the codes were changed frequently. A team of code breakers stationed at Bletchley Park worked to break codes as quickly as possible to provide advance information on German plans and troop movements. British military intelligence code-named this information Ultra intelligence as it could only be provided to
2943-730: The British Expeditionary Force ) in the Dunkirk evacuation (27 May to 4 June). British planners reported to Prime Minister Winston Churchill on 4 October that even with the help of other Commonwealth countries and the United States, it would not be possible to regain a foothold in continental Europe in the near future. After the Axis invaded the Soviet Union in June 1941, Soviet leader Joseph Stalin began pressing for
3052-534: The Eastern Front , meant the Germans no longer had a pool of able young men from which to draw. German soldiers were now on average six years older than their Allied counterparts. Many in the Normandy area were Ostlegionen (eastern legions)—conscripts and "volunteers" from Turkestan , Russia, Mongolia, and elsewhere. The Wehrmacht had provided them mainly with unreliable captured equipment; they lacked motorised transport. Formations that arrived later, such as
3161-574: The English Channel on 6 June, and more than two million Allied troops were in France by the end of August. The decision to undertake cross-channel landings in 1944 was made at the Trident Conference in Washington in May 1943. General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force , and General Bernard Montgomery was named commander of
3270-528: The Liberation of Paris followed on 25 August. German forces retreated east across the Seine on 30 August 1944, marking the close of Operation Overlord. In June 1940, Germany's leader Adolf Hitler had triumphed in what he called "the most famous victory in history"—the fall of France . British craft evacuated to England over 338,000 Allied troops trapped along the northern coast of France (including much of
3379-647: The Supermarine Spitfire and Hawker Typhoon greatly limited the number of potential landing-sites, as comprehensive air support depended upon having planes overhead for as long as possible. Morgan considered four sites for the landings: Brittany , the Cotentin Peninsula , Normandy, and the Pas de Calais . As Brittany and Cotentin are peninsulas, the Germans could have cut off the Allied advance at
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3488-535: The TO&;E of the C-47 Skytrain groups would be increased from 52 to 64 aircraft (plus nine spares) by April 1 to meet his requirements. At the same time the commander of the U.S. First Army , Lieutenant General Omar Bradley , won approval of a plan to land two airborne divisions on the Cotentin Peninsula , one to seize the beach causeways and block the eastern half at Carentan from German reinforcements,
3597-475: The Transport Plan , communications infrastructure and road and rail links were bombed to cut off the north of France and to make it more difficult to bring up reinforcements. These attacks were widespread so as to avoid revealing the exact location of the invasion. Elaborate deceptions were planned to prevent the Germans from determining the timing and location of the invasion. The coastline of Normandy
3706-613: The Trident Conference in Washington in May 1943 took the decision to launch a cross-Channel invasion within the next year. Churchill favoured making the main Allied thrust into Germany from the Mediterranean theatre , but the Americans, who were providing the bulk of the men and equipment, over-ruled him. British Lieutenant-General Frederick E. Morgan was appointed Chief of Staff, Supreme Allied Commander (COSSAC), to begin detailed planning. The initial plans were constrained by
3815-586: The U.S. Fifth Army during the Salerno landings , codenamed Operation Avalanche, in September 1943. However, a shortcoming of the system was that within 2 miles (3.2 km) of the ground emitter, the signals merged into a single blip in which both range and bearing were lost. The system was designed to steer large formations of aircraft to within a few miles of a drop zone, at which point the holophane marking lights or other visual markers would guide completion of
3924-429: The highest tides . The Allies wanted to schedule the landings for shortly before dawn, midway between low and high tide, with the tide coming in. This would improve the visibility of obstacles the enemy had placed on the beach while minimising the amount of time the men had to spend exposed in the open. Specific criteria were also set for wind speed, visibility, and cloud cover. Eisenhower had tentatively selected 5 June as
4033-580: The invasion of Normandy went through several preliminary phases throughout 1943, during which the Combined Chiefs of Staff (CCS) allocated 13½ U.S. troop carrier groups to an undefined airborne assault. The actual size, objectives, and details of the plan were not drawn up until after General Dwight D. Eisenhower became Supreme Allied Commander in January 1944. In mid-February Eisenhower received word from Headquarters U.S. Army Air Forces that
4142-543: The pathfinder companies were organized into teams of 14-18 paratroops each, whose main responsibility would be to deploy the ground beacon of the Rebecca/Eureka transponding radar system, and set out holophane marking lights. The Rebecca, an airborne sender-receiver, indicated on its scope the direction and approximate range of the Eureka, a responsor beacon. The paratroops trained at the school for two months with
4251-422: The 101st Airborne Division would make a small left turn and fly to Utah Beach . The plan called for a right turn after drops and a return on the reciprocal route. However the change in drop zones on May 27 and the increased size of German defenses made the risk to the planes from ground fire much greater, and the routes were modified so that the 101st Airborne Division would fly a more southerly ingress route along
4360-547: The 101st at Portbail , code-named "Muleshoe", was approximately 10 miles (16 km) south of that of the 82d, "Peoria", near Flamanville . Despite precise execution over the channel, numerous factors encountered over the Cotentin Peninsula disrupted the accuracy of the drops, many encountered in rapid succession or simultaneously. These included: Flak from German anti-aircraft guns resulted in planes either going under or over their prescribed altitudes. Some of
4469-493: The 4th Division had already seized the exit. The 3rd Battalion of the 501st PIR, also assigned to DZ C, was more scattered, but took over the mission of securing the exits. A small unit reached the Pouppeville exit at 0600 and fought a six-hour battle to secure it, shortly before 4th Division troops arrived to link up. The 501st PIR's serial also encountered severe flak but still made an accurate jump on Drop Zone D. Part of
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4578-448: The 501st PIR before the changes of May 27). Those of the 82nd were west (T and O, from west to east) and southwest (Drop Zone N) of Sainte-Mère-Eglise. Each parachute infantry regiment (PIR), a unit of approximately 1800 men organized into three battalions, was transported by three or four serials , formations containing 36, 45, or 54 C-47s, and separated from each other by specific time intervals. The planes, sequentially designated within
4687-401: The 82nd Airborne Division, also wanted a glider assault to deliver his organic artillery. The use of gliders was planned until April 18, when tests under realistic conditions resulted in excessive accidents and destruction of many gliders. On April 28 the plan was changed; the entire assault force would be inserted by parachute drop at night in one lift, with gliders providing reinforcement during
4796-669: The British side, Lieutenant-General Miles Dempsey commanded the Second Army , under which XXX Corps was assigned to Gold and I Corps to Juno and Sword. Land forces were under the command of Montgomery, and air command was assigned to Air Chief Marshal Sir Trafford Leigh-Mallory . The First Canadian Army included personnel and units from Poland , Belgium, and the Netherlands. Other Allied nations participated. The Allied Expeditionary Air Force flew over 3,200 photo-reconnaissance sorties from April 1944 until 6 June. Photos of
4905-523: The British. Trained crews sufficient to pilot 951 gliders were available, and at least five of the troop carrier groups intensively trained for glider missions. Because of the requirement for absolute radio silence and a study that warned that the thousands of Allied aircraft flying on D-Day would break down the existing system, plans were formulated to mark aircraft including gliders with black-and-white stripes to facilitate aircraft recognition. Air Chief Marshal Sir Trafford Leigh-Mallory , commander of
5014-721: The Combined Training Centre in Inveraray in Scotland. Naval exercises took place in Northern Ireland, and medical teams in London and elsewhere rehearsed how they would handle the expected waves of casualties. Paratroopers conducted exercises, including a huge demonstration drop on 23 March 1944 observed by Churchill, Eisenhower, and other top officials. Allied planners considered tactical surprise to be
5123-537: The DZ was covered by pre-registered German fire that inflicted heavy casualties before many troops could get out of their chutes. Among the killed were two of the three battalion commanders and one of their executive officers. A group of 150 troops captured the main objective, the la Barquette lock, by 04:00. A staff officer put together a platoon and achieved another objective by seizing two foot bridges near la Porte at 04:30. The 2nd Battalion landed almost intact on DZ D but in
5232-476: The Douve River (which would also provide a better visual landmark at night for the inexperienced troop carrier pilots). Over the reluctance of the naval commanders, exit routes from the drop zones were changed to fly over Utah Beach, then northward in a 10 miles (16 km) wide "safety corridor", then northwest above Cherbourg . As late as May 31 routes for the glider missions were changed to avoid overflying
5341-918: The Germans to believe an additional airborne assault had occurred. Training exercises for the Overlord landings took place as early as July 1943. As the nearby beach resembled the planned Normandy landing-site, the town of Slapton in Devon , was evacuated in December 1943, and taken over by the armed forces as a site for training exercises that included the use of landing craft and the management of beach obstacles. A friendly fire incident there on 27 April 1944 resulted in as many as 450 deaths. The following day, an additional estimated 749 American soldiers and sailors died when German torpedo-boats surprised members of Assault Force "U" conducting Exercise Tiger . Exercises with landing craft and live ammunition also took place at
5450-586: The Low Countries, with another 18 stationed in Denmark and Norway. Fifteen divisions were in the process of formation in Germany, but there was no strategic reserve. The Calais region was defended by the 15th Army under Generaloberst (Colonel General) Hans von Salmuth , and Normandy by the 7th Army commanded by Generaloberst Friedrich Dollmann . Combat losses throughout the war, particularly on
5559-526: The Merderet. The 101st Airborne Division's 501st Parachute Infantry Regiment (PIR), which had originally been given the task of capturing Sainte-Mère-Église , was shifted to protect the Carentan flank, and the capture of Sainte-Mère-Église was assigned to the veteran 505th PIR of the 82nd Airborne Division. For the troop carriers, experiences in the Allied invasion of Sicily the previous year had dictated
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#17327722815345668-482: The U.S. VII Corps , which sought to capture Cherbourg and thus establish an allied supply port. The two airborne divisions were assigned to block approaches toward the amphibious landings at Utah Beach , to capture causeway exits off the beaches, and to establish crossings over the Douve river at Carentan to help the U.S. V Corps merge the two American beachheads . The assaulting force took three days to block
5777-578: The UK, but in fact, all their agents had been captured, and some had become double agents working for the Allies as part of the Double-Cross System . The double agent Juan Pujol García , a Spanish opponent of the Nazis known by the code name "Garbo", developed over the two years leading up to D-Day a fake network of informants that the Germans believed were collecting intelligence on their behalf. In
5886-527: The approaches to Utah, mostly because many troops landed off-target during their drops. Still, German forces were unable to exploit the chaos. Despite many units' tenacious defense of their strongpoints, all were overwhelmed within the week. [Except where footnoted, information in this article is from the USAF official history: Warren, Airborne Operations in World War II, European Theater ] Plans for
5995-499: The area is bounded by numerous rivers and canals. On the other hand, landings on a broad front in Normandy would permit simultaneous threats against the port of Cherbourg , coastal ports further west in Brittany, and an overland attack towards Paris and eventually into Germany. The Allies therefore chose Normandy as the landing site. The most serious drawback of the Normandy coast – the lack of port facilities – would be overcome through
6104-471: The area to bolster the illusion that a large force was gathering there. As well as the broadcast of fake radio-traffic, genuine radio messages from 21st Army Group were first routed to Kent via landline and then broadcast, to give the Germans the impression that most of the Allied troops were stationed there. Patton remained stationed in England until 6 July, thus continuing to deceive the Germans into believing
6213-412: The assault force arrived but were forced to use a hand held signal light which was not seen by some pilots. The planes assigned to DZ D along the Douve River failed to see their final turning point and flew well past the zone. Returning from an unfamiliar direction, they dropped 10 minutes late and 1 mile (1.6 km) off target. The drop zone was chosen after the 501st PIR's change of mission on May 27 and
6322-432: The bad weather, but navigating errors and a lack of Eureka signal caused the 2nd Battalion 502nd PIR to come down on the wrong drop zone. Most of the remainder of the 502nd jumped in a disorganized pattern around the impromptu drop zone set up by the pathfinders near the beach. Two battalion commanders took charge of small groups and accomplished all of their D-Day missions. The division's parachute artillery experienced one of
6431-472: The capture of the port at Cherbourg. This significant expansion required the acquisition of additional landing craft, which caused the invasion to be delayed by a month until June 1944. Eventually the Allies committed 39 divisions to the Battle of Normandy: 22 American, 12 British, three Canadian, one Polish, and one French, totalling over a million troops. "Overlord" was the name assigned to the establishment of
6540-540: The channel, the troop carrier stream reached a stationary marker boat code-named "Hoboken" and carrying a Eureka beacon, where they made a sharp left turn to the southeast and flew between the Channel Islands of Guernsey and Alderney . Weather over the channel was clear; all serials flew their routes precisely and in tight formation as they approached their initial points on the Cotentin coast, where they turned for their respective drop zones. The initial point for
6649-572: The coastline were taken at extremely low altitude to show the invaders the terrain, obstacles on the beach, and defensive structures such as bunkers and gun emplacements. To conceal the location of the invasion, sorties were flown along all European coastline. Inland terrain, bridges, troop emplacements, and buildings were also photographed, in many cases from several angles. Members of Combined Operations Pilotage Parties clandestinely prepared detailed harbour maps, including depth soundings . An appeal for holiday pictures and postcards of Europe announced on
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#17327722815346758-450: The commander of the 82nd Airborne Division Artillery who had also been temporary assistant division commander (ADC) of the 82nd Airborne Division, replacing Major General William C. Lee , who suffered a heart attack and returned to the United States. Bradley insisted that 75 percent of the airborne assault be delivered by gliders for concentration of forces. Because it would be unsupported by naval and corps artillery, Ridgway, commanding
6867-899: The conditions would be unfavourable for Allied aircraft. After much discussion, Eisenhower decided that the invasion should go ahead. Allied control of the Atlantic meant that German meteorologists did not have access to as much information as the Allies on incoming weather patterns. As the Luftwaffe meteorological centre in Paris predicted two weeks of stormy weather, many Wehrmacht commanders left their posts to attend war games in Rennes , and men in many units were given leave. Marshal Erwin Rommel returned to Germany for his wife's birthday and to meet Hitler to try to get more tanks. Had Eisenhower postponed
6976-420: The date for the assault; however, on 4 June, conditions were clearly unsuitable for a landing, as high winds and heavy seas made it impossible to launch landing craft, and low clouds would prevent aircraft from finding their targets. By the evening of 4 June, the Allied meteorological team, headed by Group Captain James Stagg of the Royal Air Force , predicted that the weather would improve sufficiently so that
7085-526: The day. The Germans, who had neglected to fortify Normandy, began constructing defenses and obstacles against airborne assault in the Cotentin, including specifically the planned drop zones of the 82nd Airborne Division. At first no change in plans were made, but when significant German forces were moved into the Cotentin in mid-May, the drop zones of the 82nd Airborne Division were relocated, even though detailed plans had already been formulated and training had proceeded based on them. Just ten days before D-Day,
7194-417: The development and deployment of artificial harbours. The COSSAC staff planned to begin the invasion on 1 May 1944. The initial draft of the plan was accepted at the Quebec Conference in August 1943. General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force (SHAEF). General Bernard Montgomery was named commander of the 21st Army Group , which comprised all of
7303-409: The drop. Each drop zone (DZ) had a serial of three C-47 aircraft assigned to locate the DZ and drop pathfinder teams, who would mark it. The serials in each wave were to arrive at six-minute intervals. The pathfinder serials were organized in two waves, with those of the 101st Airborne Division arriving a half-hour before the first scheduled assault drop. These would be the first American and possibly
7412-405: The east since the creation of Führer Directive 51 , which no longer allowed any transfers from the west to the east. There were also transfers to the Italian front: von Rundstedt complained that many of his best units had been sent on a "fool's errand" to Italy, saying it was "madness ... that frightful boot of a country should have been evacuated ... we should have held a decent front with
7521-399: The eastern flank to secure the Orne River bridges, and north of Carentan on the western flank. The initial goal was to capture Carentan, Isigny , Bayeux , and Caen. The Americans, assigned to land at Utah and Omaha, were to cut off the Cotentin Peninsula and capture the port facilities at Cherbourg. The British at Sword and Gold , and the Canadians at Juno , were to capture Caen and form
7630-407: The effectiveness of the deception operations. Travel to and from the Republic of Ireland was banned, and movement within several kilometres of the coast of England restricted. The invasion planners specified a set of conditions regarding the timing of the invasion, deeming only a few days in each month suitable. A full moon was desirable, as it would provide illumination for aircraft pilots and have
7739-485: The end of the month with simulated drops in which pathfinders guided them to drop zones. The 315th and 442d Groups, which had never dropped troops until May and were judged the command's "weak sisters", continued to train almost nightly, dropping paratroopers who had not completed their quota of jumps. Three proficiency tests at the end of the month, making simulated drops, were rated as fully qualified. The inspectors, however, made their judgments without factoring that most of
7848-475: The entire II SS Panzer Corps from France, consisting of the 9th and 10th SS Panzer Divisions, as well as the 349th Infantry Division , 507th Heavy Panzer Battalion and the 311th and 322nd StuG Assault Gun Brigades. All told, the German forces stationed in France were deprived of 45,827 troops and 363 tanks, assault guns, and self-propelled anti-tank guns. It was the first major transfer of forces from France to
7957-529: The expectation that fuel would be difficult or impossible to obtain on the continent, the Allies built a "Pipe-Line Under The Ocean" ( PLUTO ). Specially developed pipes 3 in (76 mm) in diameter were to be laid under the Channel from the Isle of Wight to Cherbourg by D-Day plus 18. Technical problems and the delay in capturing Cherbourg meant the pipeline was not operational until 22 September. A second line
8066-425: The first Allied troops to land in the invasion. The three pathfinder serials of the 82nd Airborne Division were to begin their drops as the final wave of 101st Airborne Division paratroopers landed, thirty minutes ahead of the first 82nd Airborne Division drops. Efforts of the early wave of pathfinder teams to mark the drop zones were partially ineffective. The first serial, assigned to DZ A, missed its zone and set up
8175-647: The first day, but gained a tenuous foothold that they gradually expanded when they captured the port at Cherbourg on 26 June and the city of Caen on 21 July. A failed counterattack by German forces in response to Allied advances on 7 August left 50,000 soldiers of the German 7th Army trapped in the Falaise pocket by 19 August. The Allies launched a second invasion from the Mediterranean Sea of southern France (code-named Operation Dragoon ) on 15 August, and
8284-774: The first three weeks. The Allied armies would then swing left to advance towards the River Seine . The invasion fleet, led by Admiral Sir Bertram Ramsay , was split into the Western Naval Task Force (under Admiral Alan Kirk ) supporting the American sectors and the Eastern Naval Task Force (under Admiral Sir Philip Vian ) in the British and Canadian sectors. The American forces of the First Army , led by Lieutenant General Omar Bradley , comprised VII Corps (Utah) and V Corps (Omaha). On
8393-404: The invasion again, the next available period with the right combination of tides (but without the desirable full moon) was two weeks later, from 18 to 20 June. As it happened, during this period the invaders would have encountered a major storm lasting four days, between 19 and 22 June, that would have made the initial landings impossible. Nazi Germany had at its disposal 50 divisions in France and
8502-474: The invasion could go ahead on 6 June. He met Eisenhower and other senior commanders at their headquarters at Southwick House in Hampshire to discuss the situation. General Montgomery and Major-General Walter Bedell Smith , Eisenhower's chief of staff, were eager to launch the invasion. Admiral Bertram Ramsay was prepared to commit his ships, while Air Chief Marshal Trafford Leigh-Mallory expressed concern that
8611-410: The invasion, the Allies conducted Operation Bodyguard , the overall strategy designed to mislead the Germans as to the date and location of the main Allied landings. Operation Fortitude included Fortitude North, a misinformation campaign using fake radio-traffic to lead the Germans into expecting an attack on Norway, and Fortitude South, a major deception designed to fool the Germans into believing that
8720-472: The land forces involved in the invasion. On 31 December 1943, Eisenhower and Montgomery first saw the COSSAC plan, which proposed amphibious landings by three divisions , with two more divisions in support. The two generals immediately insisted on expanding the scale of the initial invasion to five divisions, with airborne descents by three additional divisions, to allow operations on a wider front and to speed up
8829-502: The landings would take place at Pas de Calais in July. A fictitious First U.S. Army Group was invented, supposedly located in Kent and Sussex under the command of Lieutenant General George S. Patton . The Allies constructed dummy tanks, trucks, and landing craft, and positioned them near the coast. Several military units, including II Canadian Corps and 2nd Canadian Division , moved into
8938-410: The men who jumped from planes at lower altitudes were injured when they hit the ground because of their chutes not having enough time to slow their descent, while others who jumped from higher altitudes reported a terrifying descent of several minutes watching tracer fire streaking up towards them. Of the 20 serials making up the two missions, nine plunged into the cloud bank and were badly dispersed. Of
9047-475: The months leading up to the landings, the Allies conducted Operation Bodyguard , a substantial military deception that used electronic and visual misinformation to mislead the Germans as to the date and location of the main Allied landings. Adolf Hitler placed Field Marshal Erwin Rommel in charge of developing fortifications all along Hitler's proclaimed Atlantic Wall in anticipation of landings in France. The Allies failed to accomplish their objectives for
9156-742: The months preceding D-Day, Pujol sent hundreds of messages to his superiors in Madrid, messages specially prepared by the British intelligence service to convince the Germans that the attack would come in July at Calais. Many of the German radar stations on the French coast were destroyed by the RAF in preparation for the landings. On the night before the invasion, in Operation Taxable , 617 Squadron (the famous "Dambusters") dropped strips of "window", metal foil that German radar operators interpreted as
9265-678: The most accurate of the D-Day drops, half the regiment dropping on or within a mile of its DZ, and 75 percent within 2 miles (3.2 km). The other regiments were more significantly dispersed. The 508th experienced the worst drop of any of the PIRs, with only 25 percent jumping within a mile of the DZ. Half the regiment dropped east of the Merderet, where it was useless to its original mission. The 507th PIR's pathfinders landed on DZ T, but because of Germans nearby, marker lights could not be turned on. Approximately half landed nearby in grassy swampland along
9374-420: The most effective use of the Eureka beacons and holophane marking lights of any pathfinder team. The planes bound for DZ N south of Sainte-Mère-Église flew their mission accurately and visually identified the zone but still dropped the teams a mile southeast. They landed among troop areas of the German 91st Division and were unable to reach the DZ. The teams assigned to mark DZ T northwest of Sainte-Mère-Église were
9483-573: The most senior commanders. The Enigma code used by Field Marshal Gerd von Rundstedt , Oberbefehlshaber West (Supreme Commander West; OB West ), commander of the Western Front , was broken by the end of March. German intelligence changed the Enigma codes after the Allied landings but by 17 June the Allies were again consistently able to read them. After the disastrous Dieppe Raid , the Allies developed new technologies for Overlord. To supplement
9592-412: The night formation training. As a result, 20 percent of the 924 crews committed to the parachute mission on D-Day had minimum night training and fully three-fourths of all crews had never been under fire. Over 2,100 CG-4 Waco gliders had been sent to the United Kingdom, and after attrition during training operations, 1,118 were available for operations, along with 301 Airspeed Horsa gliders received from
9701-700: The number of landing craft , most of which were already committed in the Mediterranean and in the Pacific. In part because of lessons learned in the Dieppe Raid of 19 August 1942, the Allies decided not to directly assault a heavily defended French seaport in their first landing. The failure at Dieppe also highlighted the need for adequate artillery and air support, particularly close air support , and specialised ships able to travel extremely close to shore. The short operating range of British aircraft such as
9810-443: The only ones dropped with accuracy, and while they deployed both Eureka and BUPS, they were unable to show lights because of the close proximity of German troops. Altogether, four of the six drops zones could not display marking lights. The pathfinder teams assigned to Drop Zones C (101st) and N (82nd) each carried two BUPS beacons. The units for DZ N were intended to guide in the parachute resupply drop scheduled for late on D-Day, but
9919-570: The other to block the western corridor at La Haye-du-Puits in a second lift. The exposed and perilous nature of the La Haye de Puits mission was assigned to the veteran 82nd Airborne Division ("The All-Americans"), commanded by Major General Matthew Ridgway , while the causeway mission was given to the untested 101st Airborne Division ("The Screaming Eagles"), which received a new commander in March, Brigadier General Maxwell D. Taylor , formerly
10028-525: The pair of DZ C were to provide a central orientation point for all the SCR-717 radars to get bearings. However the units were damaged in the drop and provided no assistance. The assault lift (one air transport operation) was divided into two missions, " Albany " and " Boston ", each with three regiment-sized landings on a drop zone. The drop zones of the 101st were northeast of Carentan and lettered A, C, and D from north to south (Drop Zone B had been that of
10137-563: The peninsula in daylight. IX Troop Carrier Command (TCC) was formed in October 1943 to carry out the airborne assault mission in the invasion. Brigadier General Paul L. Williams , who had commanded the troop carrier operations in Sicily and Italy, took command in February 1944. The TCC command and staff officers were an excellent mix of combat veterans from those earlier assaults, and
10246-584: The preliminary offshore bombardment and aerial assaults, some of the landing craft were equipped with artillery and anti-tank guns to provide close supporting fire. The Allies had decided not to immediately attack any of the heavily protected French ports and two artificial ports, called Mulberry harbours , were designed by COSSAC planners. Each assembly consisted of a floating outer breakwater , inner concrete caissons (called Phoenix breakwaters ) and several floating piers. The Mulberry harbours were supplemented by blockship shelters (codenamed "Gooseberries"). With
10355-559: The problem. All matériel requested by commanders in IX TCC, including armor plating, had been received with the exception of self-sealing fuel tanks , which Chief of the Army Air Forces General Henry H. Arnold had personally rejected because of limited supplies. Crew availability exceeded numbers of aircraft, but 40 percent were recent-arriving crews or individual replacements who had not been present for much of
10464-503: The river. Estimates of drowning casualties vary from "a few" to "scores" (against an overall D-Day loss in the division of 156 killed in action ), but much equipment was lost and the troops had difficulty assembling. Timely assembly enabled the 505th to accomplish two of its missions on schedule. With the help of a Frenchman who led them into the town, the 3rd Battalion captured Sainte-Mère-Église by 0430 against "negligible opposition" from German artillerymen. The 2nd Battalion established
10573-414: The six serials which achieved concentrated drops, none flew through the clouds. However, the primary factor limiting success of the paratroop units was the decision to make a massive parachute drop at night, because it magnified all the errors resulting from the above factors. A night parachute drop was not again used in three subsequent large-scale airborne operations. The negative impact of dropping at night
10682-540: The successful missions had been flown in clear weather. By the end of May 1944, the IX Troop Carrier Command had available 1,207 Douglas C-47 Skytrain troop carrier airplanes and was one-third overstrength, creating a strong reserve. Three quarters of the planes were less than one year old on D-Day, and all were in excellent condition. Engine problems during training had resulted in a high number of aborted sorties, but all had been replaced to eliminate
10791-525: The troop carrier crews, but although every C-47 in IX TCC had a Rebecca interrogator installed, to keep from jamming the system with hundreds of signals, only flight leads were authorized to use it in the vicinity of the drop zones. Despite many early failures in its employment, the Eureka-Rebecca system had been used with high accuracy in Italy in a night drop of the 82nd Airborne Division to reinforce
10900-485: The worst drops of the operation, losing all but one howitzer and most of its troops as casualties. The three serials carrying the 506th PIR were badly dispersed by the clouds, then subjected to intense antiaircraft fire. Even so, 2/3 of the 1st Battalion was dropped accurately on DZ C. The 2nd Battalion, much of which had dropped too far west, fought its way to the Haudienville causeway by mid-afternoon but found that
11009-408: Was also a lift of 10 serials organized in three waves, totaling 6,420 paratroopers carried by 369 C-47s. The C-47s carrying the 505th did not experience the difficulties that had plagued the 101st's drops. Pathfinders on DZ O turned on their Eureka beacons as the first 82nd serial crossed the initial point and lighted holophane markers on all three battalion assembly areas. As a result, the 505th enjoyed
11118-405: Was armed with a demolition gun that could fire large charges into pillboxes . The Duplex-Drive tank ( DD tank ), another design developed by Hobart's group, was a self-propelled amphibious tank kept afloat using a waterproof canvas screen inflated with compressed air. These tanks were easily swamped, and on D-Day, many sank before reaching the shore, especially at Omaha. In the months leading up to
11227-531: Was deemed by the British to be practical or likely to succeed. Instead, the Allies expanded their activity in the Mediterranean, launching the Operation Torch an invasion of French North Africa in November 1942, the Allied invasion of Sicily in July 1943, and Allied invasion of Italy in September. These campaigns provided the troops with valuable experience in amphibious warfare . Those attending
11336-444: Was divided into seventeen sectors, with code-names using a spelling alphabet —from Able, west of Omaha , to Roger on the east flank of Sword . Eight further sectors were added when the invasion was extended to include Utah on the Cotentin Peninsula. Sectors were further subdivided into beaches identified by the colours Green, Red, and White. Allied planners envisaged preceding the sea-borne landings with airborne drops: near Caen on
11445-429: Was further illustrated when the same troop carrier groups flew a second lift later that day with precision and success under heavy fire. Paratroopers of the 101st Airborne Division "Screaming Eagles" jumped first on June 6, between 00:48 and 01:40 British Double Summer Time . 6,928 troops were carried aboard 432 C-47s of mission "Albany" organized into 10 serials. The first flights, inbound to DZ A, were not surprised by
11554-445: Was in an area identified by the Germans as a likely landing area. Consequently so many Germans were nearby that the pathfinders could not set out their lights and were forced to rely solely on Eureka, which was a poor guide at short range. The pathfinders of the 82nd Airborne Division had similar results. The first serial, bound for DZ O near Sainte-Mère-Église , flew too far north but corrected its error and dropped near its DZ. It made
11663-563: Was laid from Dungeness to Boulogne in late October. The British built specialised tanks, nicknamed Hobart's Funnies , to deal with conditions expected during the Normandy campaign. Developed under the supervision of Major-General Percy Hobart , these were modified M4 Sherman and Churchill tanks . Examples include the Sherman Crab tank (equipped with a mine flail), the Churchill Crocodile (a flame-throwing tank), and
11772-530: Was postponed to May 11-May 12 and became a dress rehearsal for both divisions. The 52nd TCW, carrying only two token paratroopers on each C-47, performed satisfactorily although the two lead planes of the 316th Troop Carrier Group (TCG) collided in mid-air, killing 14 including the group commander, Col. Burton R. Fleet. The 53rd TCW was judged "uniformly successful" in its drops. The lesser-trained 50th TCW, however, got lost in haze when its pathfinders failed to turn on their navigation beacons. It continued training till
11881-453: Was the codename for the Battle of Normandy , the Allied operation that launched the successful liberation of German-occupied Western Europe during World War II . The operation was launched on 6 June 1944 ( D-Day ) with the Normandy landings (Operation Neptune). A 1,200-plane airborne assault preceded an amphibious assault involving more than 5,000 vessels. Nearly 160,000 troops crossed
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