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155-610: Naval convoys have been in use for centuries, with examples of merchant ships traveling under naval protection dating to the 12th century. The use of organized naval convoys dates from when ships began to be separated into specialist classes and national navies were established. By the French Revolutionary Wars of the late 18th century, effective naval convoy tactics had been developed to ward off pirates and privateers . Some convoys contained several hundred merchant ships. The most enduring system of convoys were

310-659: A Neutrality Pact in April 1941, and Japan adopted the doctrine of Nanshin-ron , promoted by the Navy, which took its focus southward and eventually led to war with the United States and the Western Allies. In Europe, Germany and Italy were becoming more aggressive. In March 1938, Germany annexed Austria , again provoking little response from other European powers. Encouraged, Hitler began pressing German claims on

465-578: A cautious French probe into the Saarland . The Western Allies also began a naval blockade of Germany , which aimed to damage the country's economy and war effort. Germany responded by ordering U-boat warfare against Allied merchant and warships, which would later escalate into the Battle of the Atlantic . On 8 September, German troops reached the suburbs of Warsaw . The Polish counter-offensive to

620-842: A Prussian counter-attack in September. Otherwise this sector of the front was largely quiet over the course of the year. At sea, the French Atlantic Fleet succeeded in holding off a British attempt to interdict a vital cereal convoy from the United States on the Glorious First of June , though at the cost of one quarter of its strength. In the Caribbean, the British fleet landed in Martinique in February, taking

775-422: A convoy, its "footprint" (the area within which it could be spotted) was far smaller than if the individual ships had traveled independently. In other words, a submarine had less chance of finding a single convoy than if it were scattered as single ships. Moreover, once an attack had been made, the submarine would need to regain an attack position on the convoy. If, however, an attack were thwarted by escorts, even if

930-480: A crowd stormed the Tuileries Palace , seizing the king and his family. The Commune of Paris later assumed the powers of the municipality. On 19 August 1792, the invasion by Brunswick's army commenced, with Brunswick's army easily taking the fortresses of Longwy and Verdun . The invasion continued, but at Valmy on 20 September, the invaders came to a stalemate against Dumouriez and Kellermann in which

1085-598: A global dimension. After a decade of constant warfare and aggressive diplomacy, France had conquered territories in the Italian Peninsula , the Low Countries , and the Rhineland due to its very large and powerful military, which had been totally mobilized for war against most of Europe with mass conscription of the vast French population. French success in these conflicts ensured military occupation and

1240-518: A great victory over the Austrians at the Battle of Jemappes on 6 November and occupying the entire country by the beginning of winter. Spain and Portugal entered the anti-French coalition in January 1793. Britain began military preparations in late 1792 and declared that war was inevitable unless France gave up its conquests, notwithstanding French assurances they would not attack Holland or annex

1395-708: A handful of ships before the rest managed to escape, and a small escort of warships could easily thwart it. As a result of the convoy system's effectiveness, wartime insurance premiums were consistently lower for ships that sailed in convoys. Many naval battles in the Age of Sail were fought around convoys, including: By the end of the Napoleonic Wars , the Royal Navy had in place a sophisticated convoy system to protect merchant ships. Losses of ships travelling out of convoy, however, were so high that no merchant ship

1550-462: A highway, convoys are also useful to conserve fuel by drafting . The film Convoy , inspired by a 1975 song of the same name , explores the camaraderie between truck drivers , where the culture of the CB radio encourages truck drivers to travel in convoys. Truck convoys are sometimes organized for fundraising , charity , or promotional purposes. They can also be used as a form of protest , such as

1705-524: A pretext to initiate the invasion. The first German attack of the war came against the Polish defences at Westerplatte . The United Kingdom responded with an ultimatum for Germany to cease military operations, and on 3 September, after the ultimatum was ignored, Britain and France declared war on Germany. During the Phoney War period, the alliance provided no direct military support to Poland, outside of

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1860-726: A pretext to worsen relations. On 29 August, Hitler demanded that a Polish plenipotentiary immediately travel to Berlin to negotiate the handover of Danzig , and to allow a plebiscite in the Polish Corridor in which the German minority would vote on secession. The Poles refused to comply with the German demands, and on the night of 30–31 August in a confrontational meeting with the British ambassador Nevile Henderson , Ribbentrop declared that Germany considered its claims rejected. On 1 September 1939, Germany invaded Poland after having staged several false flag border incidents as

2015-503: A result, the Japanese merchant fleet was largely destroyed by the end of the war. Japanese submarines, unlike their U.S. and German equivalents, focused on U.S. battle fleets rather than merchant convoys, and while they did manage some early successes, sinking two U.S. carriers, they failed to significantly inhibit the invasion convoys carrying troops and equipment in support of the U.S. island-hopping campaign. Several notable battles in

2170-475: A secret protocol that defined German and Soviet "spheres of influence" (western Poland and Lithuania for Germany; eastern Poland , Finland, Estonia , Latvia and Bessarabia for the Soviet Union), and raised the question of continuing Polish independence. The pact neutralised the possibility of Soviet opposition to a campaign against Poland and assured that Germany would not have to face the prospect of

2325-662: A series of sweeping military conflicts resulting from the French Revolution that lasted from 1792 until 1802. They pitted France against Great Britain , Austria , Prussia , Russia , and several other countries. The wars are divided into two periods: the War of the First Coalition (1792–1797) and the War of the Second Coalition (1798–1802). Initially confined to Europe, the fighting gradually assumed

2480-774: A similar pact and rejected ceding part of its territory to the Soviet Union. The Soviet Union invaded Finland in November 1939, and was subsequently expelled from the League of Nations for this crime of aggression. Despite overwhelming numerical superiority, Soviet military success during the Winter War was modest, and the Finno-Soviet war ended in March 1940 with some Finnish concessions of territory . In June 1940,

2635-514: A tiny proportion of the ocean in sight, without intelligence or radar, warships and even aircraft would be fortunate in coming across a submarine. The Royal Navy and later the United States Navy each took time to learn this lesson. Conversely, a U-boat's radius of vision was even smaller and had to be supplemented by regular long-range reconnaissance flights. For both major allied navies, it had been difficult to grasp that, however large

2790-531: A two-front war, as it had in World War   I. Immediately afterwards, Hitler ordered the attack to proceed on 26 August, but upon hearing that the United Kingdom had concluded a formal mutual assistance pact with Poland and that Italy would maintain neutrality, he decided to delay it. In response to British requests for direct negotiations to avoid war, Germany made demands on Poland, which served as

2945-732: A year, French armies under Napoleon destroyed the Habsburg forces and evicted them from the Italian peninsula, winning almost every battle and capturing 150,000 prisoners. With French forces marching toward Vienna , the Austrians sued for peace and agreed to the Treaty of Campo Formio , ending the First Coalition against the Republic. The War of the Second Coalition began in 1798 with the French invasion of Egypt , headed by Napoleon. The Allies took

3100-422: Is used during winter in case weather is too bad for vehicles to pass on their own. Convoy driving is initiated when the strong wind quickly fills the road with snow behind snowplows, particularly on mountain passes. Only a limited number of vehicles are allowed for each convoy and convoy leader is obliged to decline vehicles not fit for the drive. Storm convoys are prone to multiple-vehicle collision . Convoy driving

3255-1944: Is used through Hardangervidda pass on road 7 during blizzards. Convoy is sometimes used on road E134 at the highest and most exposed sections during bad weather. On European route E6 through Saltfjellet pass convoy driving is often used when wind speed is over 15–20 m/s ( fresh or strong gale ) in winter conditions. During the winter of 1990 there was convoy driving for almost 500 hours at Saltfjellet French Revolutionary Wars First Coalition : French victory Second Coalition : French victory [REDACTED] Catholic and Royal Armies [REDACTED]   Holy Roman Empire [REDACTED]   Great Britain (until 1801) [REDACTED]   United Kingdom (from 1801) [REDACTED] Spain (1793–1795) [REDACTED]   Dutch Republic (1793–1795) [REDACTED]   Sardinia [REDACTED]   Old Swiss Confederacy (1798) [REDACTED]   Naples [REDACTED] Order of Saint John (1798) [REDACTED] Malta (1798–1800) [REDACTED]   Ottoman Empire [REDACTED] Portugal [REDACTED]   Russia (1799) Other Italian states [REDACTED] Southern Netherlands peasants ( Peasants' War ) [REDACTED] Saint-Domingue rebels ( Haitian Revolution ) (1791–94) [REDACTED] Kingdom of France (until 1792) [REDACTED] French Republic (from 1792) [REDACTED] Louis XVI   [REDACTED] Austrians (1792–97) 94,700 killed in action 100,000 wounded 220,000 captured Italian campaign of 1796–97 27,000 allied soldiers killed Unknown wounded 160,000 captured 1,600 guns French (1792–97) 100,000 killed in action 150,000 captured Italian campaign of 1796–97 45,000 killed, wounded or captured (10,000 killed) The French Revolutionary Wars ( French : Guerres de la Révolution française ) were

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3410-604: The Anglo-German Naval Agreement and the German–Polish declaration of non-aggression . The situation became a crisis in late August as German troops continued to mobilise against the Polish border. On 23 August the Soviet Union signed a non-aggression pact with Germany, after tripartite negotiations for a military alliance between France, the United Kingdom, and Soviet Union had stalled. This pact had

3565-458: The Apennines near Altare to attack the enemy position of Ceva . The Montenotte Campaign opened after Johann Beaulieu 's Austrian forces attacked the extreme French eastern flank near Genoa on 10 April. Bonaparte countered by attacking and crushing the isolated right wing of the allied armies at the Battle of Montenotte on 12 April. The next day he defeated an Austro-Sardinian force at

3720-590: The Battle of Arcole southeast of Verona . The French then turned on Davidovich in great strength and chased him into the Tyrol. Wurmser's only sortie was late and ineffectual. The rebellion in the Vendée was also finally crushed in 1796 by Hoche , but Hoche's attempt to land a large invasion force in Ireland was unsuccessful. On 14 February, British admiral Jervis met and defeated a Spanish fleet off Portugal at

3875-643: The Battle of Cape St. Vincent . This prevented the Spanish fleet from rendezvousing with the French, removing a threat of invasion to Britain. However, the British fleet was weakened over the rest of the year by the Spithead and Nore mutinies , which kept many ships in port through the summer. On 22 February French invasion force consisting of 1,400 troops from the La Legion Noire (The Black Legion) under

4030-614: The Battle of Millesimo . He then won a victory at the Second Battle of Dego , driving the Austrians northeast, away from their Piedmontese allies. Satisfied that the Austrians were temporarily inert, Bonaparte harried Michelangelo Colli 's Piedmontese at Ceva and San Michele Mondovi before whipping them at the Battle of Mondovì . A week later, on 28 April, the Piedmontese signed the Armistice of Cherasco , withdrawing from

4185-465: The Battle of Rovereto . Then he followed Wurmser down the Brenta valley, to fall upon and defeat the Austrians at the Battle of Bassano on 8 September. Wurmser elected to march for Mantua with a large portion of his surviving troops. The Austrians evaded Bonaparte's attempts to intercept them but were driven into the city after a pitched battle on 15 September. This left nearly 30,000 Austrians trapped in

4340-580: The Battle of Valmy in September. This victory emboldened the National Convention to abolish the monarchy . A series of victories by the new French armies abruptly ended with defeat at Neerwinden in the spring of 1793. The French suffered additional defeats in the remainder of the year and these difficult times allowed the Jacobins to rise to power and impose the Reign of Terror to unify

4495-551: The Battle of the Atlantic was a long struggle as the Germans developed anti-convoy tactics and the British developed counter-tactics to thwart the Germans. The capability of a heavily armed warship against a convoy was dramatically illustrated by the fate of Convoy HX 84 . On November 5, 1940, the German heavy cruiser Admiral Scheer encountered the convoy. Maiden , Trewellard , and Kenbame Head were quickly destroyed, and Beaverford and Fresno City falling afterwards. Only

4650-689: The British Empire , with fighting in the Balkans , Mediterranean, and Middle East , the aerial Battle of Britain and the Blitz , and naval Battle of the Atlantic . Through a series of campaigns and treaties, Germany took control of much of continental Europe and formed the Axis alliance with Italy , Japan , and other countries. In June 1941, Germany led the European Axis in an invasion of

4805-479: The Canada convoy protest in 2022. The Highway Code of several European countries (Norway, Italy, Greece, Netherlands, Germany, Austria, Switzerland, possibly more) includes special rights for marked convoys. They have to be treated like a single vehicle. If the first vehicle has passed an intersection, all others may do so without interruption. If other road users overtake the convoy, they are not allowed to split into

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4960-580: The Chernobyl disaster in Belarus and Ukraine . The convoys are made possible partly by the relatively small geographic distances between the stable and affluent countries of Western Europe, and the areas of need in Eastern Europe and, in a few cases, North Africa and even Iraq . They are often justified because although less directly cost-effective than mass freight transport, they emphasise

5115-499: The Cold War with its high number of military exercises, the military was the main user of convoy rights. Today, catastrophes like large-scale flooding might bring a high number of flagged convoys to the roads. Large-scale evacuations for the disarming of World War II bombs are another common reason for non-governmental organization (NGO) unit movements under convoy rights. In Norway, "convoy driving" ( Norwegian : kolonnekjøring )

5270-474: The Declaration of Pillnitz , which threatened severe consequences should anything happen to King Louis XVI and Queen Marie Antoinette . After Austria refused to recall its troops from the French border and to back down on the perceived threat of using force, France declared war on Austria and Prussia in the spring of 1792; both countries responded with a coordinated invasion that was eventually turned back at

5425-592: The Flanders Campaign , the Austrians and French both prepared offensives in Belgium, with the Austrians besieging Landrecies and advancing towards Mons and Maubeuge . The French prepared an offensive on multiple fronts, with two armies in Flanders under Pichegru and Moreau , and Jourdan attacking from the German border. The French withstood several damaging but inconclusive actions before regaining

5580-581: The German Revolution of 1918–1919 , and a democratic government, later known as the Weimar Republic , was created. The interwar period saw strife between supporters of the new republic and hardline opponents on both the political right and left. Italy, as an Entente ally, had made some post-war territorial gains; however, Italian nationalists were angered that the promises made by the United Kingdom and France to secure Italian entrance into

5735-853: The German invasion of Poland and the United Kingdom and France 's declaration of war on Germany two days later on 3 September 1939. Dates for the beginning of the Pacific War include the start of the Second Sino-Japanese War on 7 July 1937, or the earlier Japanese invasion of Manchuria , on 19 September 1931. Others follow the British historian A. J. P. Taylor , who stated that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously, and

5890-484: The Iran–Iraq War . In the present day, convoys are used as a tactic by navies to deter pirates off the coast of Somalia from capturing unarmed civilian freighters who would otherwise pose easy targets if they sailed alone. The word "convoy" is also associated with groups of road vehicles being driven, mostly by volunteers, to deliver humanitarian aid , supplies, and—a stated objective in some cases—"solidarity". In

6045-576: The Italian mainland , and Allied offensives in the Pacific—cost the Axis powers their initiative and forced them into strategic retreat on all fronts. In 1944, the Western Allies invaded German-occupied France at Normandy , while the Soviet Union regained its territorial losses and pushed Germany and its allies westward. At the same time, Japan suffered reversals in mainland Asia, while the Allies crippled

6200-553: The Japanese Navy and captured key islands . The war in Europe concluded with the liberation of German-occupied territories ; the invasion of Germany by the Western Allies and the Soviet Union, culminating in the fall of Berlin to Soviet troops; Hitler's suicide ; and the German unconditional surrender on 8 May 1945 . Following the refusal of Japan to surrender on the terms of the Potsdam Declaration ,

6355-640: The League of Nations as a force to preserve peace. Both Italy and Ethiopia were member nations, but the League did little when the former clearly violated Article X of the League's Covenant . The United Kingdom and France supported imposing sanctions on Italy for the invasion, but the sanctions were not fully enforced and failed to end the Italian invasion. Italy subsequently dropped its objections to Germany's goal of absorbing Austria . When civil war broke out in Spain, Hitler and Mussolini lent military support to

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6510-743: The Mediterranean and weakening the French Navy. Napoleon's arrival from Egypt led to the fall of the Directory in the Coup of 18 Brumaire , with Napoleon installing himself as Consul . Napoleon then reorganized the French army and launched a new assault against the Austrians in Italy during the spring of 1800. This brought a decisive French victory at the Battle of Marengo in June 1800, after which

6665-404: The Nationalist rebels , led by General Francisco Franco . Italy supported the Nationalists to a greater extent than the Nazis: Mussolini sent more than 70,000 ground troops, 6,000 aviation personnel, and 720 aircraft to Spain. The Soviet Union supported the existing government of the Spanish Republic . More than 30,000 foreign volunteers, known as the International Brigades , also fought against

6820-510: The Rome–Berlin Axis . A month later, Germany and Japan signed the Anti-Comintern Pact , which Italy joined the following year. The Kuomintang (KMT) party in China launched a unification campaign against regional warlords and nominally unified China in the mid-1920s, but was soon embroiled in a civil war against its former Chinese Communist Party (CCP) allies and new regional warlords . In 1931, an increasingly militaristic Empire of Japan , which had long sought influence in China as

6975-451: The Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers . Nearly all the world's countries —including all the great powers —participated, with many investing all available economic, industrial, and scientific capabilities in pursuit of total war , blurring the distinction between military and civilian resources. Tanks and aircraft played major roles , with

7130-409: The Soviet–Japanese Neutrality Pact in April 1941. By contrast, the Germans were steadily making preparations for an attack on the Soviet Union, massing forces on the Soviet border. Hitler believed that the United Kingdom's refusal to end the war was based on the hope that the United States and the Soviet Union would enter the war against Germany sooner or later. On 31 July 1940, Hitler decided that

7285-408: The Spanish treasure fleets , that sailed from the 1520s until 1790. When merchant ships sailed independently, a privateer could cruise a shipping lane and capture ships as they passed. Ships sailing in convoy presented a much smaller target: a convoy was as hard to find as a single ship. Even if the privateer found a convoy and the wind was favourable for an attack, it could still hope to capture only

7440-421: The Stresa Front in April 1935 in order to contain Germany, a key step towards military globalisation ; however, that June, the United Kingdom made an independent naval agreement with Germany, easing prior restrictions. The Soviet Union, concerned by Germany's goals of capturing vast areas of Eastern Europe , drafted a treaty of mutual assistance with France. Before taking effect, though, the Franco-Soviet pact

7595-523: The Sudetenland , an area of Czechoslovakia with a predominantly ethnic German population. Soon the United Kingdom and France followed the appeasement policy of British Prime Minister Neville Chamberlain and conceded this territory to Germany in the Munich Agreement , which was made against the wishes of the Czechoslovak government, in exchange for a promise of no further territorial demands. Soon afterwards, Germany and Italy forced Czechoslovakia to cede additional territory to Hungary, and Poland annexed

7750-428: The Tanggu Truce was signed in 1933. Thereafter, Chinese volunteer forces continued the resistance to Japanese aggression in Manchuria , and Chahar and Suiyuan . After the 1936 Xi'an Incident , the Kuomintang and CCP forces agreed on a ceasefire to present a united front to oppose Japan. The Second Italo-Ethiopian War was a brief colonial war that began in October 1935 and ended in May 1936. The war began with

7905-466: The Trans-Olza region of Czechoslovakia. Although all of Germany's stated demands had been satisfied by the agreement, privately Hitler was furious that British interference had prevented him from seizing all of Czechoslovakia in one operation. In subsequent speeches Hitler attacked British and Jewish "war-mongers" and in January 1939 secretly ordered a major build-up of the German navy to challenge British naval supremacy. In March 1939, Germany invaded

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8060-506: The Treaty of Craiova . The loss of one-third of Romania's 1939 territory caused a coup against King Carol II, turning Romania into a fascist dictatorship under Marshal Ion Antonescu , with a course set towards the Axis in the hopes of a German guarantee. Meanwhile, German-Soviet political relations and economic co-operation gradually stalled, and both states began preparations for war. In April 1940, Germany invaded Denmark and Norway to protect shipments of iron ore from Sweden , which

8215-401: The United Kingdom and France to declare war on Germany. Poland was divided between Germany and the Soviet Union under the Molotov–Ribbentrop Pact , in which they had agreed on " spheres of influence " in Eastern Europe. In 1940, the Soviets annexed the Baltic states and parts of Finland and Romania . After the fall of France in June 1940, the war continued mainly between Germany and

8370-426: The Wehrmacht rapidly advanced to the Channel and cut off the Allied forces in Belgium, trapping the bulk of the Allied armies in a cauldron on the Franco-Belgian border near Lille. The United Kingdom was able to evacuate a significant number of Allied troops from the continent by early June, although they had to abandon almost all their equipment. On 10 June, Italy invaded France , declaring war on both France and

8525-451: The aftermath of World War I and the rise of fascism in Europe and militarism in Japan . Key events leading up to the war included Japan's invasion of Manchuria , the Spanish Civil War , the outbreak of the Second Sino-Japanese War , and Germany's annexations of Austria and the Sudetenland . World War II is generally considered to have begun on 1 September 1939, when Nazi Germany , under Adolf Hitler , invaded Poland , prompting

8680-404: The reunification of East and West Germany to take place and resolved most post–World War   II issues. No formal peace treaty between Japan and the Soviet Union was ever signed, although the state of war between the two countries was terminated by the Soviet–Japanese Joint Declaration of 1956 , which also restored full diplomatic relations between them. World War I had radically altered

8835-414: The 1990s these convoys became common traveling from Western Europe to countries of the former Yugoslavia , in particular Bosnia and Kosovo , to deal with the aftermath of the wars there. They also travel to countries where standards of care in institutions such as orphanages are considered low by Western European standards, such as Romania ; and where other disasters have led to problems, such as around

8990-409: The Allies were attempting to cut off . Denmark capitulated after six hours , and despite Allied support , Norway was conquered within two months. British discontent over the Norwegian campaign led to the resignation of Prime Minister Neville Chamberlain , who was replaced by Winston Churchill on 10   May 1940. On the same day, Germany launched an offensive against France . To circumvent

9145-415: The Austrians withdrew from the peninsula once again. Another crushing French triumph at Hohenlinden in Bavaria forced the Austrians to seek peace for a second time, leading to the Treaty of Lunéville in 1801. With Austria and Russia out of the war, Britain found itself increasingly isolated and agreed to the Treaty of Amiens with Napoleon's government in 1802, concluding the Revolutionary Wars. However,

9300-400: The Axis war against the Soviet Union, in Romania's case partially to recapture territory ceded to the Soviet Union . In early June 1940, the Italian Regia Aeronautica attacked and besieged Malta , a British possession. From late summer to early autumn, Italy conquered British Somaliland and made an incursion into British-held Egypt . In October, Italy attacked Greece , but the attack

9455-421: The Blitz , but largely ended in May 1941 after failing to significantly disrupt the British war effort. Using newly captured French ports, the German Navy enjoyed success against an over-extended Royal Navy , using U-boats against British shipping in the Atlantic . The British Home Fleet scored a significant victory on 27   May 1941 by sinking the German battleship Bismarck . In November 1939,

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9610-405: The European Axis declaring war on the US. Japan conquered much of coastal China and Southeast Asia , but its advances in the Pacific were halted in mid-1942 after its defeat in the naval Battle of Midway ; Germany and Italy were defeated in North Africa and at Stalingrad in the Soviet Union. Key setbacks in 1943—including German defeats on the Eastern Front, the Allied invasions of Sicily and

9765-411: The French armies. On the Alpine frontier, there was little change, with the French invasion of Piedmont failing. On the Spanish border, the French under General Dugommier rallied from their defensive positions at Bayonne and Perpignan , driving the Spanish out of Roussillon and invading Catalonia . Dugommier was killed in the Battle of the Black Mountain in November. On the northern front in

9920-455: The French king's cousin, Louis Joseph de Bourbon, Prince de Condé , the leader of an émigré corps within the Allied army , which declared the Allies' intent to restore the king to his full powers and to treat any person or town who opposed them as rebels to be condemned to death by martial law . This, however, had the effect of strengthening the resolve of the revolutionary army and government to oppose them by any means necessary. On 10 August,

10075-410: The French possessions of Syria and Lebanon , assisted by the Free French . With the situation in Europe and Asia relatively stable, Germany, Japan, and the Soviet Union made preparations for war. With the Soviets wary of mounting tensions with Germany, and the Japanese planning to take advantage of the European War by seizing resource-rich European possessions in Southeast Asia , the two powers signed

10230-410: The French took Milan . Bonaparte then advanced eastwards again, drove off the Austrians in the Battle of Borghetto and in June began the Siege of Mantua . Mantua was the strongest Austrian base in Italy. Meanwhile, the Austrians retreated north into the foothills of the Tyrol. During July and August, Austria sent a fresh army into Italy under Dagobert Wurmser . Wurmser attacked toward Mantua along

10385-435: The French. The Dutch fleet was captured , and the stadtholder William V fled to be replaced by a popular Batavian Republic , a sister republic which supported the revolutionary cause and signed a treaty with the French, ceding the territories of North Brabant and Maastricht to France on 16 May. With the Netherlands falling, Prussia also decided to leave the coalition, signing the Peace of Basel on 6 April, ceding

10540-426: The Germans, and the last large operational unit of the Polish Army surrendered on 6   October . Despite the military defeat, Poland never surrendered; instead, it formed the Polish government-in-exile and a clandestine state apparatus remained in occupied Poland. A significant part of Polish military personnel evacuated to Romania and Latvia; many of them later fought against the Axis in other theatres of

10695-438: The Italian peninsula. The French prepared a great advance on three fronts, with Jourdan and Moreau on the Rhine, and Bonaparte in Italy. The three armies were to link up in Tyrol and march on Vienna . Jourdan and Moreau advanced rapidly into Germany, and Moreau had reached Bavaria and the edge of Tyrol by September, but Jourdan was defeated by Archduke Charles at Amberg , and both armies were forced to retreat back across

10850-423: The Low Countries. Britain expelled the French ambassador following the execution of Louis XVI and on 1 February, France responded by declaring war on Great Britain and the Dutch Republic . France drafted hundreds of thousands of men , beginning a policy of using mass conscription to deploy more of its manpower than the autocratic states could manage to do (first stage, with a decree of 24 February 1793 ordering

11005-450: The Nationalists. Both Germany and the Soviet Union used this proxy war as an opportunity to test in combat their most advanced weapons and tactics. The Nationalists won the civil war in April 1939; Franco, now dictator, remained officially neutral during World War   II but generally favoured the Axis . His greatest collaboration with Germany was the sending of volunteers to fight on the Eastern Front . In July 1937, Japan captured

11160-599: The North Atlantic on February 8, 1941. When the Germans detected the slow but well-protected battleship HMS  Ramillies escorting the convoy, they fled the scene rather than risk damage from her 15 in (38 cm) guns. The enormous number of vessels involved and the frequency of engagements meant that statistical techniques could be applied to evaluate tactics: an early use of operational research in war. Prior to overt participation in World War II,

11315-637: The Pillnitz Declaration as a non-committal gesture to placate the sentiments of French monarchists and nobles, it was seen in France as a serious threat and was denounced by the revolutionary leaders. France eventually issued an ultimatum demanding that Leopold renounce any hostile alliances and withdraw his troops from the French border. The reply was evasive, and the French Assembly voted for war on 20 April 1792 against Francis II ,

11470-565: The Revolution with equanimity, but became more disturbed as the Revolution became more radical, although he still hoped to avoid war. On 27 August 1791, Leopold and King Frederick William II of Prussia , in consultation with emigrant French nobles, issued the Declaration of Pillnitz , which declared the interest of the monarchs of Europe in the well-being of King Louis XVI of France and his family, and threatened vague but severe consequences if anything should befall them. Although Leopold saw

11625-533: The Rhine. Napoleon, on the other hand, was completely successful in a daring invasion of Italy . He left Paris on 11 March for Nice to take over the weak and poorly supplied Army of Italy , arriving on 26 March. The army was already being reorganised and supplied when he arrived, and he found that the situation was rapidly improving. He was soon able to carry out the plan for the invasion of Italy that he had been advocating for years, which provided for an advance over

11780-511: The Royal Navy putting three Italian battleships out of commission after a carrier attack at Taranto , and neutralising several more warships at the Battle of Cape Matapan . Italian defeats prompted Germany to deploy an expeditionary force to North Africa; at the end of March 1941, Rommel 's Afrika Korps launched an offensive which drove back Commonwealth forces. In less than a month, Axis forces advanced to western Egypt and besieged

11935-656: The South Pacific involved Allied bombers interdicting Japanese troopship convoys which were often defended by Japanese fighters, notable Guadalcanal (13 November 1942), Rabaul (5 January 1943), and the Battle of the Bismarck Sea (2–4 March 1943). At the Battle off Samar , the effectiveness of the U.S. Navy's escorts was demonstrated when they managed to defend their troop convoy from a much larger and more powerful Japanese battle-fleet. The Japanese force comprised four battleships and numerous heavy cruisers, while

12090-602: The Soviet Union occupied the entire territories of Estonia, Latvia and Lithuania, as well as the Romanian regions of Bessarabia, Northern Bukovina, and the Hertsa region . In August 1940, Hitler imposed the Second Vienna Award on Romania which led to the transfer of Northern Transylvania to Hungary. In September 1940, Bulgaria demanded Southern Dobruja from Romania with German and Italian support, leading to

12245-877: The Soviet Union , opening the Eastern Front and initially making large territorial gains. Japan aimed to dominate East Asia and the Asia-Pacific , and by 1937 was at war with the Republic of China . In December 1941, Japan attacked American and British territories in Southeast Asia and the Central Pacific , including Pearl Harbor in Hawaii , which resulted in the US and the UK declaring war against Japan, and

12400-585: The Soviet Union and Mongolia . The Japanese doctrine of Hokushin-ron , which emphasised Japan's expansion northward, was favoured by the Imperial Army during this time. This policy would prove difficult to maintain in light of the Japanese defeat at Khalkin Gol in 1939, the ongoing Second Sino-Japanese War and ally Nazi Germany pursuing neutrality with the Soviets. Japan and the Soviet Union eventually signed

12555-756: The Soviet Union should be eliminated and aimed for the conquest of Ukraine , the Baltic states and Byelorussia . However, other senior German officials like Ribbentrop saw an opportunity to create a Euro-Asian bloc against the British Empire by inviting the Soviet Union into the Tripartite Pact. In November 1940, negotiations took place to determine if the Soviet Union would join the pact. The Soviets showed some interest but asked for concessions from Finland, Bulgaria, Turkey, and Japan that Germany considered unacceptable. On 18 December 1940, Hitler issued

12710-576: The U-boats presented themselves as targets to the escorts with increasing possibility of destruction. In this way, the Ubootwaffe suffered severe losses, for little gain, when pressing pack attacks on well-defended convoys. The largest convoy effort since World War II was Operation Earnest Will , the U.S. Navy's 1987–88 escort of reflagged Kuwaiti tankers in the Persian Gulf during

12865-574: The U.S. force consisted of escort carriers, destroyers, and destroyer escorts. Large numbers of American aircraft (albeit without much anti-ship ordnance other than torpedoes) and aggressive tactics of the destroyers (with their radar-directed gunfire) allowed the U.S. to sink three Japanese heavy cruisers at the cost of one escort carrier and three destroyers. The German anti-convoy tactics included: The Allied responses included: They were also aided by Many naval battles of World War II were fought around convoys, including: The convoy prefix indicates

13020-455: The US dropped the first atomic bombs on Hiroshima and Nagasaki on 6 and 9 August. Faced with an imminent invasion of the Japanese archipelago , the possibility of further atomic bombings, and the Soviet declaration of war against Japan and its invasion of Manchuria , Japan announced its unconditional surrender on 15 August and signed a surrender document on 2 September 1945 , marking

13175-654: The US was actively engaged in convoys with the British in the North Atlantic Ocean, primarily supporting British activities in Iceland. After Germany declared war on the US, the US Navy decided not to organize convoys on the American eastern seaboard. US Fleet Admiral Ernest King ignored advice on this subject from the British, as he had formed a poor opinion of the Royal Navy early in his career. The result

13330-581: The United Kingdom and France guaranteed their support for Polish independence ; when Italy conquered Albania in April 1939, the same guarantee was extended to the Kingdoms of Romania and Greece . Shortly after the Franco - British pledge to Poland, Germany and Italy formalised their own alliance with the Pact of Steel . Hitler accused the United Kingdom and Poland of trying to "encircle" Germany and renounced

13485-542: The United Kingdom attacked on 3   July in an attempt to prevent its seizure by Germany. The air Battle of Britain began in early July with Luftwaffe attacks on shipping and harbours . The German campaign for air superiority started in August but its failure to defeat RAF Fighter Command forced the indefinite postponement of the proposed German invasion of Britain . The German strategic bombing offensive intensified with night attacks on London and other cities in

13640-461: The United Kingdom. The Germans turned south against the weakened French army, and Paris fell to them on 14   June. Eight days later France signed an armistice with Germany ; it was divided into German and Italian occupation zones , and an unoccupied rump state under the Vichy Regime , which, though officially neutral, was generally aligned with Germany. France kept its fleet, which

13795-604: The United States was assisting China and the Western Allies, and had amended the Neutrality Act to allow "cash and carry" purchases by the Allies. In 1940, following the German capture of Paris, the size of the United States Navy was significantly increased . In September the United States further agreed to a trade of American destroyers for British bases . Still, a large majority of the American public continued to oppose any direct military intervention in

13950-606: The Yellow River ; this manoeuvre bought time for the Chinese to prepare their defences at Wuhan , but the city was taken by October. Japanese military victories did not bring about the collapse of Chinese resistance that Japan had hoped to achieve; instead, the Chinese government relocated inland to Chongqing and continued the war. In the mid-to-late 1930s, Japanese forces in Manchukuo had sporadic border clashes with

14105-711: The armies on the Pyrenees free to march east and reinforce the armies on the Alps , and the combined army overran Piedmont. Meanwhile, in Africa and Asia, the Dutch Cape Colony and Ceylon were invaded by the British. Meanwhile, Britain's attempt to reinforce the rebels in the Vendée by landing troops at Quiberon failed, and a conspiracy to overthrow the republican government from within ended when Napoleon Bonaparte 's garrison used cannon to fire grapeshot into

14260-415: The attacking mob (which led to the establishment of the Directory ). On the Rhine frontier, General Pichegru , negotiating with the exiled Royalists , betrayed his army and forced the evacuation of Mannheim and the failure of the siege of Mainz by Jourdan . This was a moderate setback to the position of the French. In northern Italy, victory at the Battle of Loano in November gave France access to

14415-510: The capital Nanking in December 1937. After the fall of Nanking, tens or hundreds of thousands of Chinese civilians and disarmed combatants were murdered by the Japanese . In March 1938, Nationalist Chinese forces won their first major victory at Taierzhuang , but then the city of Xuzhou was taken by the Japanese in May. In June 1938, Chinese forces stalled the Japanese advance by flooding

14570-454: The city ). Quasdanovich was overcome at Lonato on 3 August and Wurmser at Castiglione on 5 August. Wurmser retreated to the Tyrol, and Bonaparte resumed the siege. In September, Bonaparte marched north against Trento in Tyrol, but Wurmser had already marched toward Mantua by the Brenta valley, leaving Paul Davidovich 's force to hold off the French. Bonaparte overran the holding force at

14725-540: The command of Irish American Colonel William Tate landed near Fishguard (Wales). They were met by a quickly assembled group of around 500 British reservists , militia and sailors under the command of John Campbell, 1st Baron Cawdor . After brief clashes with the local civilian population and Lord Cawdor's forces on 23 February, Tate was forced into an unconditional surrender by 24 February. World War II Asia-Pacific Mediterranean and Middle East Other campaigns Coups World War II or

14880-403: The conflict well into 1941. In December 1940, Roosevelt accused Hitler of planning world conquest and ruled out any negotiations as useless, calling for the United States to become an " arsenal of democracy " and promoting Lend-Lease programmes of military and humanitarian aid to support the British war effort; Lend-Lease was later extended to the other Allies, including the Soviet Union after it

15035-526: The creation of a " New Roman Empire ". Adolf Hitler , after an unsuccessful attempt to overthrow the German government in 1923, eventually became the Chancellor of Germany in 1933 when Paul von Hindenburg and the Reichstag appointed him. Following Hindenburg's death in 1934, Hitler proclaimed himself Führer of Germany and abolished democracy, espousing a radical, racially motivated revision of

15190-552: The declaration of war, French soldiers deserted en masse and in one case murdered their general, Théobald Dillon . While the revolutionary government frantically raised fresh troops and reorganized its armies, a mostly Prussian Allied army under Charles William Ferdinand, Duke of Brunswick assembled at Koblenz on the Rhine . The duke then issued a proclamation called the Brunswick Manifesto (July 1792), written by

15345-812: The dissolution of the Austro-Hungarian, Ottoman, and Russian Empires. To prevent a future world war, the League of Nations was established in 1920 by the Paris Peace Conference . The organisation's primary goals were to prevent armed conflict through collective security, military, and naval disarmament , as well as settling international disputes through peaceful negotiations and arbitration. Despite strong pacifist sentiment after World War   I , irredentist and revanchist nationalism had emerged in several European states. These sentiments were especially marked in Germany because of

15500-571: The draft of 300,000 men, followed by the general mobilization of all the young men able to be drafted, through the famous decree of 23 August 1793). Nonetheless, the Coalition allies launched a determined drive to invade France during the Flanders Campaign . France suffered severe reverses at first. They were driven out of the Austrian Netherlands, and serious revolts flared in the west and south of France. One of these, at Toulon ,

15655-530: The east side of Lake Garda , sending Peter Quasdanovich down the west side in an effort to envelop Bonaparte. Bonaparte exploited the Austrian mistake of dividing their forces to defeat them in detail, but in so doing, he abandoned the siege of Mantua, which held out for another six months ( Carl von Clausewitz mentioned in On War that the siege might have been able to be kept up if Bonaparte had circumvallated

15810-712: The end of May completed the German conquest of the Balkans. Partisan warfare subsequently broke out against the Axis occupation of Yugoslavia , which continued until the end of the war. In the Middle East in May, Commonwealth forces quashed an uprising in Iraq which had been supported by German aircraft from bases within Vichy-controlled Syria . Between June and July, British-led forces invaded and occupied

15965-463: The end of the war. World War II changed the political alignment and social structure of the world, and it set the foundation of international relations for the rest of the 20th century and into the 21st century. The United Nations was established to foster international cooperation and prevent conflicts, with the victorious great powers—China, France, the Soviet Union, the UK, and the US—becoming

16120-607: The end of the year, large new armies had turned back foreign invaders, and the Reign of Terror , a fierce policy of repression, had suppressed internal revolts. The French military was in the ascendant. Lazare Carnot , a scientist and prominent member of the Committee of Public Safety , organized the fourteen armies of the Republic , and was then nicknamed the Organizer of the Victory. The year 1794 brought increased success to

16275-507: The escorting warships to the sometimes hazardous conditions of the North Atlantic, with only rare occurrences of visible achievement (i.e. fending off a submarine assault). The British adopted a convoy system, initially voluntary and later compulsory for almost all merchant ships, the moment that World War II was declared. Each convoy consisted of between 30 and 70 mostly unarmed merchant ships. Canadian, and later American, supplies were vital for Britain to continue its war effort. The course of

16430-575: The first step of what its government saw as the country's right to rule Asia , staged the Mukden incident as a pretext to invade Manchuria and establish the puppet state of Manchukuo . China appealed to the League of Nations to stop the Japanese invasion of Manchuria. Japan withdrew from the League of Nations after being condemned for its incursion into Manchuria. The two nations then fought several battles, in Shanghai , Rehe and Hebei , until

16585-864: The former Chinese imperial capital of Peking after instigating the Marco Polo Bridge incident , which culminated in the Japanese campaign to invade all of China. The Soviets quickly signed a non-aggression pact with China to lend materiel support, effectively ending China's prior cooperation with Germany . From September to November, the Japanese attacked Taiyuan , engaged the Kuomintang Army around Xinkou , and fought Communist forces in Pingxingguan . Generalissimo Chiang Kai-shek deployed his best army to defend Shanghai , but after three months of fighting, Shanghai fell. The Japanese continued to push Chinese forces back, capturing

16740-451: The fortress. This number rapidly diminished due to disease, combat losses, and hunger. The Austrians sent yet another army under József Alvinczi against Bonaparte in November. Again the Austrians divided their effort, sending Davidovich's corps from the north while Alvinczi's main body attacked from the east. At first they proved victorious over the French at Bassano , Calliano , and Caldiero . But Bonaparte ultimately defeated Alvinczi in

16895-471: The highly professional French artillery distinguished itself. Although the battle was a tactical draw, it gave a great boost to French morale. Further, the Prussians, finding that the campaign had been longer and more costly than predicted, decided that the cost and risk of continued fighting was too great and, with winter approaching, they decided to retreat from France to preserve their army. The next day,

17050-473: The hostilities. On 18 May they signed the Treaty of Paris (1796) , ceding Savoy and Nice and allowing the French bases to be used against Austria. After a short pause, Napoleon carried out a brilliant flanking manoeuvre, and crossed the Po at Piacenza , nearly cutting the Austrian line of retreat. The Austrians escaped after the Battle of Fombio , but had their rear-guard mauled at Lodi on 10 May, after which

17205-568: The initiative at the battles of Tourcoing and Fleurus in June. The French armies drove the Austrians, British, and Dutch beyond the Rhine, occupying Belgium, the Rhineland , and the south of the Netherlands. On the middle Rhine front in July, General Michaud's Army of the Rhine attempted two offensives in July in the Vosges , the second of which was successful but not followed up, allowing for

17360-525: The invasion of the Ethiopian Empire (also known as Abyssinia ) by the armed forces of the Kingdom of Italy ( Regno d'Italia ), which was launched from Italian Somaliland and Eritrea . The war resulted in the military occupation of Ethiopia and its annexation into the newly created colony of Italian East Africa ( Africa Orientale Italiana , or AOI); in addition it exposed the weakness of

17515-735: The latter enabling the strategic bombing of population centres and delivery of the only two nuclear weapons ever used in war. World War II was the deadliest conflict in history, resulting in 70 to 85 million deaths , more than half being civilians. Millions died in genocides , including the Holocaust of European Jews, as well as from massacres, starvation, and disease. Following the Allied powers' victory, Germany , Austria , Japan , and Korea were occupied, and war crimes tribunals were conducted against German and Japanese leaders . The causes of World War II included unresolved tensions in

17670-604: The lingering tensions proved too difficult to contain, and the Napoleonic Wars began over a year later with the formation of the Third Coalition , continuing the series of Coalition Wars . When the French Revolution started at the end of the 18th century the European continent had five great powers, these being Great Britain , France , Austria , Russia , and Prussia . Weak European states included Sweden , Spain , Poland , Holland , and Turkey . Western Germany

17825-597: The main reason that the British Admiralty did not adopt convoy tactics at the start of the first Battle of the Atlantic in World War I . But the German capital ships had been bottled up in the North Sea, and the main threat to shipping came from U-boats . From a tactical point of view, World War I–era submarines were similar to privateers in the age of sail. These submarines were only a little faster than

17980-421: The merchant ships they were attacking, and capable of sinking only a small number of vessels in a convoy because of their limited supply of torpedoes and shells. The Admiralty took a long time to respond to this change in the tactical position, and in April 1917 convoys were trialled, before being officially introduced in the Atlantic in September 1917. Other arguments against convoys were raised. The primary issue

18135-557: The monarchy was formally abolished as the First Republic was declared (21 September 1792). Meanwhile, the French had been successful on several other fronts, occupying Savoy and Nice , which were parts of the Savoyard state , while General Custine invaded Germany, occupying several German towns along the Rhine and reaching as far as Frankfurt . Dumouriez went on the offensive in the Austrian Netherlands once again, winning

18290-820: The nation. In 1794, the situation improved dramatically for the French as huge victories at Fleurus against the Austrians and Dutch and at the Black Mountain against the Spanish signaled the start of a new stage in the wars. By 1795, the French had captured the Austrian Netherlands and the Dutch Republic . The French also put Spain and Prussia out of the war with the Peace of Basel . A hitherto unknown general named Napoleon Bonaparte began his first campaign in Italy in April 1796. In less than

18445-464: The opportunity presented by the French effort in the Middle East to regain territories lost from the First Coalition. The war began well for the Allies in Europe, where they gradually pushed the French out of Italy and invaded Switzerland – racking up victories at the battles of Magnano , Cassano , and Novi along the way. However, their efforts largely unraveled with the French victory at Zurich in September 1799, which caused Russia to drop out of

18600-447: The permanent members of its security council . The Soviet Union and the United States emerged as rival superpowers , setting the stage for the Cold War . In the wake of European devastation, the influence of its great powers waned, triggering the decolonisation of Africa and Asia . Most countries whose industries had been damaged moved towards economic recovery and expansion . World War II began in Europe on 1 September 1939 with

18755-589: The political European map with the defeat of the Central Powers —including Austria-Hungary , Germany , Bulgaria , and the Ottoman Empire —and the 1917 Bolshevik seizure of power in Russia , which led to the founding of the Soviet Union. Meanwhile, the victorious Allies of World War I , such as France, Belgium, Italy, Romania, and Greece, gained territory, and new nation-states were created out of

18910-427: The port of Tobruk . By late March 1941, Bulgaria and Yugoslavia signed the Tripartite Pact ; however, the Yugoslav government was overthrown two days later by pro-British nationalists. Germany and Italy responded with simultaneous invasions of both Yugoslavia and Greece , commencing on 6 April 1941; both nations were forced to surrender within the month. The airborne invasion of the Greek island of Crete at

19065-417: The prime targets of speed traps . Most truckers had difficult schedules to keep and as a result had to maintain a speed above the posted speed limit to reach their destinations on time. Convoys were started so that multiple trucks could run together at a high speed with the rationale being that if they passed a speed trap the police would only be able to pull over one of the trucks in the convoy. When driving on

19220-403: The queue. Clear and uniform marking has been required in court decisions for these rights to apply. Operating such convoy usually needs special permission, but there are exemptions for emergency and catastrophe intervention. Common practice is, to operate with the same style of marking as NATO convoys: STANAG 2154 marking plus country-specific augmentation listed in Annex B to the STANAG. During

19375-407: The remainder of Czechoslovakia and subsequently split it into the German Protectorate of Bohemia and Moravia and a pro-German client state , the Slovak Republic . Hitler also delivered an ultimatum to Lithuania on 20 March 1939, forcing the concession of the Klaipėda Region , formerly the German Memelland . Greatly alarmed and with Hitler making further demands on the Free City of Danzig ,

19530-403: The route of the convoy. For example, 'PQ' would be Iceland to Northern Russia and 'QP' the return route. The success of convoys as an anti-submarine tactic during the world wars can be ascribed to several reasons related to U-boat capabilities, the size of the ocean and convoy escorts. In practice, Type VII and Type IX U-boats were limited in their capabilities. Submerged speed and endurance

19685-504: The sacrifices of the armed merchant cruiser HMS  Jervis Bay and the freighter Beaverford to stall the Scheer , in addition to failing light, allowed the rest of the convoy to escape. The deterrence value of a battleship in protecting a convoy was also dramatically illustrated when the German light battleships (referred by some as battlecruisers) Scharnhorst and Gneisenau , mounting 11 in (28 cm) guns, came upon an eastbound British convoy ( HX 106 , with 41 ships) in

19840-405: The short-lived Anglo-Corsican Kingdom . By the end of the year French armies had won victories on all fronts, and as the year closed they began advancing into the Netherlands. The year opened with French forces in the process of attacking the Dutch Republic in the middle of winter. The Dutch people rallied to the French call and started the Batavian Revolution . City after city was occupied by

19995-410: The significant territorial, colonial, and financial losses imposed by the Treaty of Versailles . Under the treaty, Germany lost around 13 percent of its home territory and all its overseas possessions , while German annexation of other states was prohibited, reparations were imposed, and limits were placed on the size and capability of the country's armed forces . The German Empire was dissolved in

20150-434: The spread of revolutionary principles over much of Europe. As early as 1791, the other monarchies of Europe looked with outrage at the revolution and its upheavals; and they considered whether they should intervene, either in support of King Louis XVI , to prevent the spread of revolution, or to take advantage of the chaos in France. Austria stationed significant troops on its French border and together with Prussia, issued

20305-447: The start or prelude to World War II. The exact date of the war's end also is not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 15 August 1945 ( V-J Day ), rather than with the formal surrender of Japan on 2 September 1945, which officially ended the war in Asia . A peace treaty between Japan and the Allies was signed in 1951. A 1990 treaty regarding Germany's future allowed

20460-415: The strong Maginot Line fortifications on the Franco-German border, Germany directed its attack at the neutral nations of Belgium , the Netherlands , and Luxembourg . The Germans carried out a flanking manoeuvre through the Ardennes region, which was mistakenly perceived by the Allies as an impenetrable natural barrier against armoured vehicles. By successfully implementing new Blitzkrieg tactics,

20615-599: The submarine had escaped damage, it would have to remain submerged for its own safety and might only recover its position after many hours' hard work. U-boats patrolling areas with constant and predictable flows of sea traffic, such as the United States Atlantic coast in early 1942, could dismiss a missed opportunity in the certain knowledge that another would soon present itself. The destruction of submarines required their discovery, an improbable occurrence on aggressive patrols, by chance alone. Convoys, however, presented irresistible targets and could not be ignored. For this reason,

20770-422: The successor of Leopold II, after a long list of grievances presented by foreign minister Charles François Dumouriez . Dumouriez prepared an immediate invasion of the Austrian Netherlands , where he expected the local population to rise against Austrian rule as they had earlier in 1790 . However, the revolution had thoroughly disorganized the army, and the forces raised were insufficient for the invasion. Following

20925-405: The support of large numbers of small groups, and are quite distinct from multinational organisations such as United Nations humanitarian efforts. Truckers' convoys consisting of semi-trailer trucks and/or petrol tankers are more similar to a caravan than a military convoy. Truckers' convoys were created as a byproduct of the U.S.' national 55 mph speed limit and 18-wheelers becoming

21080-415: The two wars became World War II in 1941. Other proposed starting dates for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War   II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939. Others view the Spanish Civil War as

21235-407: The war were not fulfilled in the peace settlement. From 1922 to 1925, the Fascist movement led by Benito Mussolini seized power in Italy with a nationalist, totalitarian , and class collaborationist agenda that abolished representative democracy, repressed socialist, left-wing, and liberal forces, and pursued an aggressive expansionist foreign policy aimed at making Italy a world power, promising

21390-475: The war. Germany annexed western Poland and occupied central Poland ; the Soviet Union annexed eastern Poland ; small shares of Polish territory were transferred to Lithuania and Slovakia . On 6 October, Hitler made a public peace overture to the United Kingdom and France but said that the future of Poland was to be determined exclusively by Germany and the Soviet Union. The proposal was rejected and Hitler ordered an immediate offensive against France, which

21545-458: The war. Meanwhile, Napoleon's forces annihilated a series of Egyptian and Ottoman armies at the battles of the Pyramids , Mount Tabor , and Abukir . These victories in Egypt further enhanced Napoleon's popularity back in France, and he returned in triumph in the autumn of 1799, although the Egyptian campaign ultimately ended in failure. Furthermore, the Royal Navy had won the Battle of the Nile in 1798, further strengthening British control of

21700-407: The west bank of the Rhine to France. This freed Prussia to finish the Third Partition of Poland . The French army in Spain advanced in Catalonia while taking Bilbao and Vitoria and marching toward Castile . By 10 July, Spain also decided to make peace, recognizing the revolutionary government and ceding the territory of Santo Domingo , but returning to the pre-war borders in Europe. This left

21855-404: The west halted the German advance for several days, but it was outflanked and encircled by the Wehrmacht . Remnants of the Polish army broke through to besieged Warsaw . On 17 September 1939, two days after signing a cease-fire with Japan , the Soviet Union invaded Poland under the supposed pretext that the Polish state had ceased to exist. On 27 September, the Warsaw garrison surrendered to

22010-487: The whole island by 24 March and holding it until the Treaty of Amiens , and in Guadeloupe in April, where they captured the island briefly but were driven out by Victor Hugues later in the year. In the Mediterranean, following the British evacuation of Toulon , the Corsican leader Pasquale Paoli agreed with admiral Samuel Hood to place Corsica under British protection in return for assistance capturing French garrisons at Saint-Florent , Bastia , and Calvi , creating

22165-483: The world order , and soon began a massive rearmament campaign . France, seeking to secure its alliance with Italy, allowed Italy a free hand in Ethiopia , which Italy desired as a colonial possession. The situation was aggravated in early 1935 when the Territory of the Saar Basin was legally reunited with Germany, and Hitler repudiated the Treaty of Versailles, accelerated his rearmament programme, and introduced conscription. The United Kingdom, France and Italy formed

22320-554: Was invaded by Germany. The United States started strategic planning to prepare for a full-scale offensive against Germany. At the end of September 1940, the Tripartite Pact formally united Japan, Italy, and Germany as the Axis powers . The Tripartite Pact stipulated that any country—with the exception of the Soviet Union—that attacked any Axis Power would be forced to go to war against all three. The Axis expanded in November 1940 when Hungary , Slovakia , and Romania joined. Romania and Hungary later made major contributions to

22475-562: Was allowed to sail unescorted. In the early 20th century, the dreadnought changed the balance of power in convoy battles. Steaming faster than merchant ships and firing at long ranges, a single battleship could destroy many ships in a convoy before the others could scatter over the horizon. To protect a convoy against a capital ship required providing it with an escort of another capital ship, at very high opportunity cost (i.e. potentially tying down multiple capital ships to defend different convoys against one opponent ship). Battleships were

22630-456: Was divided into hundreds of tiny principalities, cities, and minor states, some of which were independents while others were effectively controlled by Austria. The great powers had agrarian industries , except for Great Britain which was wealthy because of trade . The key figure in initial foreign reaction to the French Revolution was Holy Roman Emperor Leopold II , brother of Queen Marie Antoinette of France. Leopold had initially looked on

22785-432: Was limited and not suited for overhauling many ships. Even a surfaced U-boat could take several hours to gain an attack position. Torpedo capacity was also restricted to around fourteen (Type VII) or 24 (Type IX), thus limiting the number of attacks that could be made, particularly when multiple firings were necessary for a single target. There was a real problem for the U-boats and their adversaries in finding each other; with

22940-403: Was postponed until the spring of 1940 due to bad weather. After the outbreak of war in Poland, Stalin threatened Estonia , Latvia , and Lithuania with military invasion, forcing the three Baltic countries to sign pacts allowing the creation of Soviet military bases in these countries; in October 1939, significant Soviet military contingents were moved there. Finland refused to sign

23095-657: Was repulsed with heavy Italian casualties; the campaign ended within months with minor territorial changes. To assist Italy and prevent Britain from gaining a foothold, Germany prepared to invade the Balkans, which would threaten Romanian oil fields and strike against British dominance of the Mediterranean. In December 1940, British Empire forces began counter-offensives against Italian forces in Egypt and Italian East Africa . The offensives were successful; by early February 1941, Italy had lost control of eastern Libya, and large numbers of Italian troops had been taken prisoner. The Italian Navy also suffered significant defeats, with

23250-441: Was required to go through the bureaucracy of the League of Nations, which rendered it essentially toothless. The United States, concerned with events in Europe and Asia, passed the Neutrality Act in August of the same year. Hitler defied the Versailles and Locarno Treaties by remilitarising the Rhineland in March 1936, encountering little opposition due to the policy of appeasement . In October 1936, Germany and Italy formed

23405-516: Was small compared with the loss of productivity due to ships being sunk. Ports could deal more easily with convoys because they tended to arrive on schedule and so loading and unloading could be planned. In his book On the Psychology of Military Incompetence , Norman Dixon suggested that the hostility towards convoys in the naval establishment were in part caused by a (sub-conscious) perception of convoys as effeminating, due to warships having to care for civilian merchant ships. Convoy duty also exposes

23560-409: Was the first serious taste of action for an unknown young artillery officer Napoleon Bonaparte . He contributed to the siege of the city and its harbour by planning an effective assault with well-placed artillery batteries raining projectiles down on rebel positions. This performance helped make his reputation as a capable tactician, and it fueled his meteoric rise to military and political power. By

23715-583: Was the loss of productivity, as merchant shipping in convoy has to travel at the speed of the slowest vessel in the convoy and spent a considerable amount of time in ports waiting for the next convoy to depart. Further, large convoys were thought to overload port resources. Actual analysis of shipping losses in World War I disproved all these arguments, at least so far as they applied to transatlantic and other long-distance traffic. Ships sailing in convoys were far less likely to be sunk, even when not provided with an escort. The loss of productivity due to convoy delays

23870-429: Was too late. In the early part of the conflict, American submarines in the Pacific were ineffective as they suffered from timid tactics, faulty torpedoes, and poor deployment, while there were only small numbers of British and Dutch boats. U.S. Admiral Charles A. Lockwood 's efforts, coupled with strenuous complaints from his captains, rectified these problems and U.S. submarines became much more successful by war's end. As

24025-436: Was what the U-boat crews called their Second Happy Time , which did not end until convoys were introduced. In the Pacific Theater of World War II, Japanese merchant ships rarely traveled in convoys. Japanese destroyers were generally deficient in antisubmarine weaponry compared to their Allied counterparts, and the Japanese navy did not develop an inexpensive convoy escort like the Allies' destroyer escort / frigate until it

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