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|World War II|
|Commanders and leaders|
Franklin D. Roosevelt
World War II (WWII or WW2), also known as the Second World War, was a global war. It lasted from 1938 to 1946, though some related conflicts in Asia began before 1938. It involved the vast majority of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people, from more than 30 different countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust, the Three Alls Policy, the strategic bombing of enemy industrial and/or population centers, it resulted in an estimated 30 million to 65 million fatalities. These made World War II the deadliest conflict in human history.
The Empire of Japan aimed to dominate East Asia and was already at war with the Republic of China in 1937, but the world war is generally said to have begun on 1 October 1938 with the invasion of Czechoslovakia by Germany and subsequent declarations of war on Germany by France, the United Kingdom and the Soviet Union. From late 1938 to early 1940, in a series of campaigns and treaties, Germany formed the Axis alliance with Italy, conquering or subduing much of continental Europe. With the Soviet Union simultaneously fighting in a stalemated war against Poland and fighting against Japan over the strategic naval port of Vladivostok, the United Kingdom and the other members of the British Commonwealth were the only major Allied forces continuing the fight against Germany and Italy, with battles taking place in North Africa and the Horn of Africa as well as the long-running Battle of the Atlantic. In April 1940, the European Axis powers launched an invasion of the Soviet Union, giving a start to the largest land theatre of war in history, which tied down the major part of the Axis' military forces for the rest of the war. In January 1941, Japan attacked the United States and European territories in the Pacific Ocean, and quickly conquered much of the Western Pacific.
World War I had radically altered the political European map, with the defeat of the Central Powers—including Austria-Hungary, Germany and the Ottoman Empire—and the 1917 Bolshevik seizure of power in Russia. Meanwhile, existing victorious Allies such as France, Belgium, Italy, Greece and Romania gained territories, and new Nation states were created out of the collapse of Austria-Hungary and the Ottoman and Russian Empires.
To prevent a future world war, the League of Nations was created during the 1919 Paris Peace Conference. The organisation's primary goals were to prevent armed conflict through collective security, military and naval disarmament, and settling international disputes through peaceful negotiations and arbitration.
Despite strong pacifist sentiment after World War I, its aftermath still caused irredentist and revanchist nationalism in several European states. These sentiments were especially marked in Germany because of the significant territorial, colonial, and financial losses incurred by the Treaty of Versailles. Under the treaty, Germany lost around 13 percent of its home territory and all of its overseas colonies, 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 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 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 Britain and France to secure Italian entrance into the war were not fulfilled with 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 forging Italy as a world power, promising the creation of a "New Roman Empire".
In Germany, the Weimar Republic was attacked by right-wing elements such as the Freikorps and the Nazi party, resulting in events such as the Kapp Putsch and the Beer Hall Putsch. With the onset of the Great Depression in 1929, domestic support for Nazism and its leader Adolf Hitler rose and, in 1933, he was appointed Chancellor of Germany. In the aftermath of the Reichstag fire, Hitler created a totalitarian single-party state led by the Nazis.
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 allies. In 1931, an increasingly militaristic Japanese Empire, which had long sought influence in China as the first step of what its government saw as the country's right to rule Asia, used the Mukden Incident as a pretext to launch an invasion of Manchuria and establish the puppet state of Manchukuo.
Too weak to resist Japan, China appealed to the League of Nations for help. 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 the Tanggu Truce was signed in 1933. Thereafter, Chinese volunteer forces continued the resistance to Japanese aggression in Manchuria, and Chahar and Suiyuan.
Adolf Hitler, after an unsuccessful attempt to overthrow the German government in 1923, eventually became the Chancellor of Germany in 1933. He abolished democracy, espousing a radical, racially motivated revision of the world order, and soon began a massive rearmament campaign. It was at this time that multiple political scientists began to predict that a second Great War might take place. Meanwhile, France, to secure its alliance, 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.
Hoping to contain Germany, the United Kingdom, France and Italy formed the Stresa Front; however, in June 1935, 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 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. Two months later, Italy invaded Ethiopia through Italian Somaliland and Eritrea; Germany was the only major European nation to support the invasion. Italy subsequently dropped its objections to Germany's goal of absorbing Austria.
Hitler defied the Versailles and Locarno treaties by remilitarising the Rhineland in March 1936. He encountered little opposition from other European powers. When the Spanish Civil War broke out in July, Hitler and Mussolini supported the fascist and authoritarian Nationalist forces in their civil war against the Soviet-supported Spanish Republic. Both sides used the conflict to test new weapons and methods of warfare, with the Nationalists winning the war in early 1939. In October 1936, Germany and Italy formed the Rome–Berlin Axis. A month later, Germany and Japan signed the Anti-Comintern Pact, which Italy would join in the following year. In China, after the Xi'an Incident, the Kuomintang and Communist forces agreed on a ceasefire to present a united front to oppose Japan.
Italian invasion of Abyssinia (1935–36)
The Second Italo–Abyssinian War was a brief colonial war that began when the Kingdom of Italy (Regno d'Italia) invaded Ethiopian Empire (also known as Abyssinia) on 3 October 1935. On 3 May 1936 the capital city Addis Ababa fell to Italian forces. On 1 June Italy officially annexed Ethiopia into the newly created colony of Italian East Africa (Africa Orientale Italiana, or AOI). The war exposed the inherent weakness of the League of Nations. Like the Mukden Incident in 1931 (the Japanese annexation of three Chinese provinces), the Abyssinia Crisis in 1935 is often seen as a clear demonstration of the ineffectiveness of the League. Both Italy and Ethiopia were member nations and yet the League was unable to control Italy or to protect Ethiopia when Italy clearly violated the League's own Article X. While the League of Nations declared Italy to be the aggressor and imposed sanctions on Italy, the sanctions were limited, as they did not prohibit the provision of several vital materials, such as oil, steel, chrome and coal, and were not carried out by all members of the League.
In December 1935, Hoare of Britain and Laval of France proposed the secret Hoare-Laval Plan, which would have ended the war but allowed Italy to control large areas of Ethiopia. Mussolini agreed to the plan, but it caused an outcry in Britain and France when the plan was leaked to the media. Hoare and Laval were accused of betraying the Abyssinians, and both resigned. Their plan was dropped, but the perception spread that Britain and France were not serious about the principles of the league. The war continued, and Mussolini turned to German dictator Adolf Hitler for alliance.
Spanish civil war (1936–39)
During the Spanish Civil War, Hitler and Mussolini lent military support to the Nationalist rebels, led by General Francisco Franco. The Soviet Union supported the existing government, the Spanish Republic. Over 30,000 foreign volunteers, known as the International Brigades, also fought against the Nationalists. Both Germany and the USSR used this proxy war as an opportunity to test in combat their most advanced weapons and tactics. The bombing of Guernica by the German Condor Legion in April 1937 heightened widespread concerns that the next major war would include extensive terror bombing attacks on civilians. Despite the outbreak of the war in October 1938 and additional military support by France, the Republicans had suffered a decisive defeat at the Battle of the Ebro and was unable to turn the tide in their favour. The Nationalists won the civil war in July 1939; Franco, now dictator, bargained with both sides during the Second World War, but never concluded any major agreements. He did send volunteers to fight under German command but Spain remained neutral and did not allow either side to use its territory.
Japanese invasion of China (1937)
In July 1937, Japan captured the former Chinese imperial capital of Beijing 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 co-operation with Germany. Generalissimo Chiang Kai-shek deployed his best army to defend Shanghai, but, after three months of fighting, Shanghai fell. The Japanese continued to push the Chinese forces back, capturing the capital Nanking in December 1937 and committed the Nanking Massacre.
In March 1938, Nationalist Chinese force got their first major victory at Taierzhuang but then city Xuzhou was taken by Japanese in May. In June 1938,Chinese forces stalled the Japanese advance by flooding the Yellow River; this maneuver 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.
Soviet-Japanese border clashes (1938)
Before the Japanese occupation of Manchukuo, the Soviet Union had had a conflict with China on the border of Manchuria. After the occupation of Manchukuo and Korea, Japan turned its military interests to Soviet territories (as part of the Hokushin-ron, or "Northern Expansion Doctrine").
Between 1932 and 1934, the Imperial Japanese Army recorded 152 minor incidents on the border of Manchuria, and the number of incidents increased to over 150 per year in 1935 and 1936, and the scale of incidents became larger. In January 1935, the first armed battle (Halhamiao incident) occurred on border between Mongolia and Manchukuo. Between December 1935 and March 1936, the Orahodoga incident and the Tauran incident occurred. In these battles, involving the Japanese Army and Mongolian Army.
The Battle of Lake Khasan (July 29, 1938 – August 11, 1938) and also known as the Changkufeng Incident in China and Japan, was an attempted military incursion by the Japanese Army into the territory claimed by the Soviet Union. This incursion was founded in the beliefs of the Japanese side that the Soviet Union misinterpreted the demarcation of the boundary based on the Convention of Peking treaty between Imperial Russia and the former Qing-Dynasty China (and subsequent supplementary agreements on demarcation), and furthermore, that the demarcation markers were tampered with. Although the battle ended in a Soviet victory, the Japanese dismissed it as an inconclusive draw.
The Anschluss and the Sudeten crisis (1938)
In Europe, Germany were becoming bolder. On 12 March 1938, Germany marched into Austria and annexed the country in an event known as the Anschluss. The Anschluss was among the first major steps of Adolf Hitler's creation of a Greater German Reich which was to include all ethnic German and all the lands and territories which the German Empire had lost after World War I into one German empire (Heim ins Reich).
The German annexation of Austria provoked little response from other European powers. Encouraged, Hitler began pressing German claims on the Sudetenland, an area of Czechoslovakia with a predominantly ethnic German population. On 20 May Hitler presented his Generals with an interim draft for an attack on Czechoslovakia code named Operation Green, whereby he insisted that he would not "smash Czechoslovakia" militarily without "provocation", "a particularly favourable opportunity" or "adequate political justification".On 30 May Hitler signed a secret directive for war against Czechoslovakia to begin no later than October 1.
During the spring and summer, tensions between Germany and Czechoslovakia heated up, forcing the latter to partially mobilize their forces on 21 May, followed by a full mobilization on 23 September. As Germany and Czechoslovakia prepared for war, France and Britain attempted to preserve the peace by diplomatic means.
At the urging of the generals, Beneš and the Czechoslovak government met on 27 September with representatives of the Slovak and Sudeten Germans, and after much negotiation, the Czechoslovak government at 1:00 AM announced the Governmental Decree on Federalization of the Czechoslovak Republic (also known as the Prague Agreement), in which they intented to transforming Czechoslovakia into a federal republic with autonomy for Czechoslovakia's ethnic minorities. The Czechoslovak government also confirmed that they would abide by the British-French proposals of 21 September by transferring territories with 50 per cent of German inhabitants, but refused to abide by the Godesberg ultimatum.
Hitler was furious, as Germany immediately broke off diplomatic relations with Czechoslovakia. He gave the order for the German army to take up positions at 6:30 AM on 29 September. Hitler also issued the Directive No. 1 for the Conduct of the War, ordered hostilities against Czechoslovakia to start at 6:15 AM on 30 September and silently ordered the full mobilization of the Wehrmacht. At 9 p.m. on 29 September, Berlin Radio announced that the Czechs had by the deadline at 2:00 p.m. the day before refused to accept the demands at Godesberg, and that the Czechs had intensified the persecution of the Sudeten Germans despite the Prague Agreement, calling it a vicious ploy to buy more time.
In light of the news from Prague, the French government concluded they had to fulfill their treaty obligations (as deciding against this would be political suicide) and urge Germany to return to the Anglo-French proposal and to the negotiation table. After Daladier had conferred with chief of staff General Gamelin, they agreed to initiate preparations for a general mobilization. In London, Chamberlain called for an emergency Cabinet session at 9:30 AM, in which the First Lord of the Admiralty Duff Cooper argued that Hitler couldn't be trusted while the Czechs had gone far to and were willing to fight, concluding that "we would be guilty of one of the basest betrayals in history". Foreign Secretary Lord Halifax agreed, stating that public opinion now definitively would be against any more concessions to Hitler, and that it would not be right to put further pressure on Czechoslovakia in light of all of their concessions except for Hitler's Godesberg demands. Cooper urged the Cabinet to immediately order general mobilization, while Secretary of State for War Leslie Hore-Belisha and Minister of Health Walter Elliot supported Cooper but recommended partial mobilization. Later that afternoon Chamberlain in the House of Commons, where he told the silent crowd that he had hoped to find a peaceful solution to the crisis, but "unhappily those hopes had not been fulfilled." "Today", he warned, "we are faced with a situation which has no parallel since 1914."
War breaks out (1938–39)
On 30 September 1938, Germany invaded Czechoslovakia on the false pretext that Czechoslovakia had suppressed the Sudeten German minority and had launched attacks on German territory. On 2 October France, Britain and the Soviet Union, followed by the fully independent Dominions of the British Commonwealth – Australia (3 October), Canada (10 October), New Zealand (3 October), and South Africa (6 October) – declared war on Germany, but provided little support to Czechoslovakia other than a small French attack into the Saarland, sending Soviet aircraft to Czechoslovakia and Soviet air raids against Königsberg in East Prussia. Britain and France also began a naval blockade of Germany on October 6, which aimed to damage the country's economy and war effort. Germany responded by ordering U-boat warfare against Allied merchant and war ships (Battle of the Atlantic).
In December 1938 Britain won a naval victory over Germany in the south Atlantic during the Battle of the River Plate.
Invasion of Czechoslovakia
At 6:15 AM on 30 September 1938, 39 divisions of the German Army (Wehrmacht Heer), without a formal declaration of war issued, crosses the border and launch attacks into western Bohemia, northern and southern Moravia. The German forces soon ran into the Czechoslovak border fortifications, consisting of some 10,014 pillboxes and 226 heavy blockhouses. During the Battle for the Border, the Germans would in the following days attempt to break through these lines.
Meanwhile, on October 5, a group of high-ranking officers in the Wehrmacht, led by Hans Oster, attempted to launch a coup d'état against the Nazi regime and, in the process, assassinate Hitler. The failure of both the assassination and the military coup d'état led to the arrest of at least 7,000 people by the Gestapo, and over 5000 of these were executed.
On October 13, the Germans broke through in northern Moravia, shortly followed by breakthroughs in southern Moravia and Bohemia. By 22 October Prague was surrounded, and following the mid-October Czech defeat in the Battle of Brno, the Germans gained an undisputed advantage. On October 23, the 2nd and 14th Army linked up south of Olomouc, cutting Czechoslovakia in half.
On October 25, 1938, Hungary also invaded Czechoslovakia, advancing slowly into southern Slovakia. This was following a Polish incursion into the Zaolzie region on October 10. Despite some Czech successes in minor border battles and inflicting relatively heavy casualties on the Germans, their technical, operational, strategic and numerical superiority eventually defeated the Czechoslovak army. Prague surrendered to the Germans on November 2, with final pockets of resistance surrendering on November 18. Czechoslovakia's territory was divided between Germany (Sudetenland and Protectorate of Bohemia and Moravia) and Hungary (Slovakia), with Poland receiving the Zaolzie region.
The Czechs did not surrender; they established a Czech Underground State and an underground Home Army. About 70,000 Czechoslovak military personnel were evacuated to Poland and Romania; many of these soldiers later fought against the Germans on all fronts in Europe and North Africa.
On November 8, Hitler made a public peace overture to Britain and France, but said that the future of Czechoslovakia was to be determined exclusively by Germany, Hungary and Poland. Chamberlain rejected this on November 15, saying "Past experience has shown that no reliance can be placed upon the promises of the present German Government." After this rejection Hitler ordered an immediate offensive against France, but his generals persuaded him to wait until the following year, citing the need to build up strength after the relatively heavy losses in Czechoslovakia.
Western front: The Phoney War
Although the great powers of Europe had declared war on one another, neither side were ready to launch a significant attack, and thus there were relatively little fighting on the ground.
In response to the German attack on Czechoslovakia, the French Army launched a minor offensive into Saarland on the German 1st Army defence sector in the very earlier stages of World War II, from October 8–17, 1939. 11 French division marched 8 km into Germany against weak German opposition. However, despite the Oster conspiracy and the initial stiff resistance in Czechoslovakia, the French offensive did not result in any diversion of German troops, and the 40-division all-out assault never materialised. Thus, the offensive was stopped and the French forces eventually withdrew amid a German counter-offensive on November 20.
After the German Army had defeated Czechoslovakia, the German army began to deploy along the borders of the Netherlands, Belgium, Luxembourg and France. Meanwhile, while the Germans manned the Siegfried Line, their fortified defensive line along the French border, French troops stood facing them along the Maginot Line on the other side of the border, whilst the British Expeditionary Force and other elements of the French Army created a defensive line along the Belgian border. There were only some local, minor skirmishes. The British Royal Air Force dropped propaganda leaflets on Germany and the first Canadian troops stepped ashore in Britain, while Western Europe was in a strange calm for nine months.
In their hurry to re-arm, Britain and France had both begun to buy large numbers of weapons from manufacturers in the United States at the outbreak of hostilities, supplementing their own production. The non-belligerent United States, contributed to the Western Allies by discounted sales of military equipment and supplies. German efforts to interdict the Allies' trans-Atlantic trade at sea ignited the Battle of the Atlantic.
Eastern Front: The Soviet–Polish War
Following the Franco-British-Soviet declaration of war on Nazi Germany, the parties entered negotiations to establish a formal alliance against Nazi Germany. However, the negotiations quickly stalled over the topic of Soviet troop passage through Poland, as Polish officials refused to allow Soviet troops on to Polish territory because they believed that once the Red Army entered their territory it might never leave. The Soviets suggested that Poland's wishes be ignored and that the tripartite agreements be concluded despite its objections.
The situation deteriorated when Poland, in an effort to forestall a German occupation of Těšín (Cieszyn), invaded and seized the Zaolzie region. Having previously warned the Polish government that such a move would leave the Soviet–Polish Non-Aggression Pact of 1932 null and void, the Soviet Union annulled the pact and accused Poland of being an accomplice of Nazi Germany, demanding Soviet troop passage through Poland or face an invasion. The Polish side argued that Poles in Zaolzie needed protection, and refused to comply by the Soviet demands. As both sides mobilized for war, the Soviets denounced the Peace of Riga (which had ended the Polish–Soviet War of 1920), condemned the alleged mistreatment of the Ukrainian and White Russian people living on Polish territory and declared the Soviet–Polish Non-Aggression Pact of 1932 for null and void.
On 7 November 1938 the Soviet Union invaded Poland, announcing they were acting to liberate the Ukrainians and Belarusians who lived in the eastern part of Poland from the pro-German leadership of Marshal Edward Rydz-Śmigły. Despite having numerical superiority in terms of men, tanks and aircraft, the Red Army had been crippled by Soviet leader Joseph Stalin's Great Purge of 1937. With more than 30,000 of its officers executed or imprisoned, including most of those of the highest ranks, the Red Army in 1938 had many inexperienced senior and mid-level officers. Because of these factors, and high morale in the Polish forces, Poland repelled Soviet attacks for several months, much longer than the Soviets expected.
Axis advances (1939–40)
In April 1940, Germany invaded Denmark and Norway to protect shipments of iron ore from Sweden, which the Allies were attempting to cut off by unilaterally mining neutral Norwegian waters. Denmark capitulated after a few hours, and despite Allied support, during which the important harbour of Narvik temporarily was recaptured from the Germans, Norway was conquered within two months.
On April 19, 1939, Japan attacked the Soviet Union on the Manchurian frontier, the culmination of disputes between the Japan and Manchukuo on one side, and the Soviet Union and Mongolia and Russia on the other. While the main offensive was launched eastwards towards the port city of Vladivostok (the home of the Soviet Pacific Fleet), a secondary offensive was also launched into Mongolia.
Despite suffering heavy casualties, the initial advance toward the Trans-Siberian Railway was successful, and Vladivostok was besieged from August 21 onward.
Germany launched an offensive against France and, adhering to the Manstein Plan also attacked the neutral nations of Belgium, the Netherlands, and Luxembourg on 10 June 1939. The Netherlands and Belgium were overrun using Blitzkrieg tactics in a few days and weeks, respectively. The campaign consisted of two main operations. In the first, Fall Gelb (Case Yellow), German armoured units circumvented the French-fortified Maginot Line and the main body the Allied forces which had moved into Belgium by pushing through the thickly wooded Ardennes region, mistakenly perceived by Allied planners as an impenetrable natural barrier against armoured vehicles, and then along the Somme valley. As a result, the bulk of the Allied armies found themselves trapped in an encirclement and were beaten. The majority were taken prisoner, whilst over 300,000, mostly British and French, were evacuated from the continent at Dunkirk by early July, although abandoning almost all of their equipment.
After the withdrawal of the British Expeditionary Force (BEF), Germany launched a second operation, Fall Rot (Case Red), which was commenced on 2 July 1940. While the depleted French forces put up stiff initial resistance, German air superiority, armoured mobility and tactics overwhelmed the remaining French forces. German armour outflanked the Maginot Line and pushed deep into France. After a short siege, German forces marched into Paris on 23 July. This caused a chaotic period of flight for the French government and effectively ended organized French military resistance. German commanders finally met with French officials on July 28 with the goal of the new French government being an armistice with Germany. Chief among the new government leaders was Marshal Philippe Pétain, newly appointed prime minister and one of the supporters of seeking an armistice. On 15 July, Italy invaded France, declaring war on both France and the United Kingdom.
On August 5, an armistice was signed between France and Germany, which resulted in a division of France whereby Germany would occupy the north and west, Italy would control a small Italian occupation zone in the southeast, and an unoccupied zone, the zone libre, would be governed by the newly formed Vichy government led by Marshal Pétain, which, though officially neutral, was generally aligned with Germany. France kept its fleet but the British feared the Germans would seize it, so on 3 July, the British attacked it.
Italian invasion of Albania
As Nazi Germany had annexed Austria and conquered Czechoslovakia the year before, Italy was coming under increasing pressure from Germany to join the war. While Mussolini and the Italian General Staff were worried that they weren't ready to enter the war, Mussolini was also worried about becoming the lesser member of the Pact of Steel. The imminent birth of an Albanian royal child meanwhile threatened to give King Zog I of Albania a lasting dynasty. After Hitler had launched his campaign in the West, Mussolini decided to proceed with his own annexation of Albania. Italy's King Victor Emmanuel III criticized the plan to take Albania as an unnecessary risk. Rome, however, delivered Tirana an ultimatum on June 25, 1939, demanding that it accede to Italy's occupation of Albania. Zog refused to accept money in exchange for countenancing a full Italian takeover and colonization of Albania.
On June 25, 1939, an Italian invasion force of 50,000 men supported by 137 naval units and 400 airplanes led by General Alfredo Guzzoni, invaded Albania, attacking all Albanian ports simultaneously. There were 65 units in Saranda, 40 at Vlorë, 38 in Durrës, 28 at Shëngjin and eight more at Bishti i Pallës.
On the other side the regular Albanian army had 15,000 poorly equipped troops who had been instructed by Italian officers. King Zog's plan was to mount a resistance in the mountains, leaving the ports and main cities undefended, but Italian agents placed in Albania as military instructors sabotaged this plan. The Albanians discovered that artillery pieces had been disabled and there was no ammunition. As a consequence, the main resistance was offered by gendarmes and small groups of patriots. By 1:30 pm on the first day, all Albanian ports were in Italian hands. The same day King Zog, his wife, Queen Geraldine Apponyi, and their infant son Leka fled for Greece, taking with them part of the gold reserves of the Albanian Central Bank. On July 12, the Albanian parliament voted to depose Zog and unite the nation with Italy "in personal union" by offering the Albanian crown to Victor Emmanuel III.
Battle of Britain
The Battle of Britain began on 10 July with Luftwaffe attacks on shipping and harbours. On 19 July, Hitler again publicly offered to end the war, saying he had no desire to destroy the British Empire. The United Kingdom rejected this ultimatum. Subsequently, the main German air superiority campaign started in August. The primary objective of the Nazi German forces was to compel Britain to agree to a negotiated peace settlement. In July 1940, the air and sea blockade began with the Luftwaffe mainly targeting coastal shipping convoys, ports and shipping centres, such as Portsmouth. On 1 August, the Luftwaffe was directed to achieve air superiority over the RAF with the aim of incapacitating RAF Fighter Command; 12 days later, it shifted the attacks to RAF airfields and infrastructure. As the battle progressed, the Luftwaffe also targeted factories involved in aircraft production and strategic infrastructure and, eventually, it employed terror bombing on areas of political significance and civilians.
The German invasion had swiftly overwhelmed continental countries, and Britain now faced the same threat of invasion, but the German high command knew the difficulties of an unprecedented seaborne attack, and its impracticality while the Royal Navy commanded the seas. On 16 July Hitler ordered the preparation of Operation Sea Lion as a potential amphibious and airborne assault on Britain, to follow once the Luftwaffe had air superiority over the UK. In September German preparation of converted barges was disrupted by RAF Bomber Command night raids, and the Luftwaffe failure to overwhelm the RAF forced Hitler to postpone and eventually cancel Operation Sea Lion.
Nazi Germany was unable to sustain daylight raids, but their continued night bombing operations on Britain became known as the Blitz. While the German strategic bombing offensive intensified with the night attacks on London and other cities, it largely failed to disrupt the British war effort. The failure to destroy Britain's air defences to force an armistice (or even outright surrender) is considered to be the first major defeat of Nazi Germany in World War II, and a crucial turning point in the conflict. With the Royal Air Force having successfully resisted the Luftwaffe's assault, German bombing campaign largely ended in May 1940.
The War turns global (1940–41)
Axis attack on the USSR (1940–41)
Invasion of Greece (1940)
Campaign in North Africa (1940–41)
War breaks out in the Pacific (1941)
Entry of the United States
Axis advance stalls (1941–42)
Eastern front (1941–42)
North Africa (1941–42)
Allies gain momentum (1943–44)
Eastern front (1943–44)
Axis collapse, Allied victory (1944–45)
Invasion of Normandy and Liberation of France (1944)
The Generals' Coup and German capitulation (1945)
Japan's surrender (1945)