World War II

The carnage of World War II was unprecedented and brought the world closest to the term “total warfare.” On average 27,000 people were killed each day between September 1, 1939, until the formal surrender of Japan on September 2, 1945. Western technological advances had turned upon itself, bringing about the most destructive war in human history. The primary combatants were the Axis nations of Nazi Germany, Fascist Italy, Imperial Japan, and the Allied nations, Great Britain (and its Commonwealth nations), the Soviet Union, and the United States. Seven days after the suicide of Adolf Hitler, Germany unconditionally surrendered on May 7, 1945. The Japanese would go on to fight for nearly four more months until their surrender on September 2, which was brought on by the U.S. dropping atomic bombs on the Japanese towns of Nagasaki and Hiroshima. Despite winning the war, Britain largely lost much of its empire, which was outlined in the basis of the Atlantic Charter.The USA and USSR emerged from World War II as global superpowers. The fundamentally disparate, one-time allies became engaged in what was to be called the Cold War, which dominated world politics for the latter half of the 20th century.

Some say it was simply a continuation of the First World War that had theoretically ended in 1918. Others point to 1931, when Japan seized Manchuria from China. Others to Italy’s invasion and defeat of Abyssinia (Ethiopia) in 1935, Adolf Hitler’s re-militarization of Germany’s Rhineland in 1936, the Spanish Civil War (1936–1939), and Germany’s occupation of Czechoslovakia in 1938 are sometimes cited. The two dates most often mentioned as “the beginning of World War II” are July 7, 1937, when the “Marco Polo Bridge Incident” led to a prolonged war between Japan and China, and September 1, 1939, when Germany invaded Poland, which led Britain and France to declare war on Hitler’s Nazi state in retaliation. From the invasion of Poland until the war ended with Japan’s surrender in September 1945, most nations around the world were engaged in armed combat.

No one historic event can be said to have been the origin of World War II. Japan’s unexpected victory over czarist Russia in the Russo-Japanese War (1904-05) left open the door for Japanese expansion in Asia and the Pacific. The United States U.S. Navy first developed plans in preparation for a naval war with Japan in 1890. War Plan Orange, as it was called, would be updated continually as technology advanced and greatly aided the U.S. during World War II.The years between the first and second world wars were a time of instability. The Great Depression that began on Black Tuesday, 1929 plunged the worldwide recession. Coming to power in 1933, Hitler capitalized on this economic decline and the deep German resentment due to the emasculating Treaty of Versailles, signed following the armistice of 1918. Declaring that Germany needed Lebensraum or “living space,” Hitler began to test the Western powers and their willingness to monitor the treaty’s provision. By 1935 Hitler had established the Luftwaffe, a direct violation of the 1919 treaty. Remilitarizing the Rhineland in 1936 violated Versailles and the Locarno Treaties (which defined the borders of Europe) once again. The Anschluss of Austria and the annexation of the rump of Czechoslovakia was a further extension of Hitler’s desire for Lebensraum. Italy’s desire to create the Third Rome pushed the nation to closer ties with Nazi Germany. Likewise, Japan, angered by their exclusion in Paris in 1919, sought to create a Pan-Asian sphere with Japan in order to create a self-sufficient state.Competing ideologies further fanned the flames of international tension. The Bolshevik Revolution in czarist Russia during the First World War, followed by the Russian Civil War, had established the Union of Soviet Socialist Republics (USSR), a sprawling communist state. Western republics and capitalists feared the spread of Bolshevism. In some nations, such as Italy, Germany and Romania, ultra-conservative groups rose to power, in part in reaction to communism.Germany, Italy and Japan signed agreements of mutual support but, unlike the Allied nations they would face, they never developed a comprehensive or coordinated plan of action.

Rationing was introduced in Britain early in the New Year, but little happened in western Europe until the spring. The 'winter war' between Russia and Finland concluded in March, and in the following month Germany invaded Denmark and Norway.Denmark surrendered immediately, but the Norwegians fought on - with British and French assistance - surrendering in June only once events in France meant that they were fighting alone. ... On 10 May - the same day that World War II replaced Neville Chamberlain as Prime Minister of the UK - Germany invaded France, Belgium and Holland, and western Europe encountered the Blitzkrieg - or 'lightning war'.Germany's combination of fast armoured tanks on land, and superiority in the air, made a unified attacking force that was both innovative and effective. Despite greater numbers of air and army personnel - and the presence of the British Expeditionary Force - the Low Countries and France proved no match for the Wehrmacht and the Luftwaffe. Holland and Belgium fell by the end of May; Paris was taken two weeks later.British troops retreated from the invaders in haste, and some 226,000 British and 110,000 French troops were rescued from the channel port of Dunkirk only by a ragged fleet, using craft that ranged from pleasure boats to Navy destroyers.In France an armistice was signed with Germany, with the puppet French Vichy government - under a hero of World War One, Marshall Pétain - in control in the 'unoccupied' part of southern and eastern France, and Germany in control in the rest of the country. Charles de Gaulle, as the leader of the Free French, fled to England (much to Churchill's chagrin) to continue the fight against Hitler . But it looked as if that fight might not last too long. Having conquered France, Hitler turned his attention to Britain, and began preparations for an invasion. For this to be successful, however, he needed air superiority, and he charged the Luftwaffe with destroying British air power and coastal defences.The Battle of Britain, lasting from July to September, was the first to be fought solely in the air. Germany lacked planes but had many pilots. In Britain, the situation was reversed, but - crucially - it also had radar. This, combined with the German decision to switch the attacks from airfields and factories to the major cities, enabled the RAF to squeak a narrow victory, maintain air superiority and ensure the - ultimately indefinite - postponement of the German invasion plans.The 'Blitz' of Britain's cities lasted throughout the war, saw the bombing of Buckingham Palace and the near-destruction of Coventry, and claimed some 40,000 civilian lives.

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With continental Europe under Nazi control, and Britain safe - for the time being - the war took on a more global dimension. Following the defeat of Mussolini's armies in Greece and Tobruk, German forces arrived in North Africa in February, and invaded Greece and Yugoslavia in April.While the bombing of British and German cities continued, and the gas chambers at Auschwitz were put to use, Hitler invaded Russia . Operation Barbarossa, as the invasion was called, began on 22 June. The initial advance was swift, with the fall of Sebastopol at the end of October, and Moscow coming under attack at the end of the year.The bitter Russian winter, however, like the one that Napoleon had experienced a century and a half earlier, crippled the Germans. The Soviets counterattacked in December and the Eastern Front stagnated until the spring. Winter in the Pacific, of course, presented no such problems. The Japanese, tired of American trade embargoes, mounted a surprise attack on the US Navy base of Pearl Harbor, in Hawaii, on 7 December. This ensured that global conflict commenced, with Germany declaring war on the US, a few days later. Within a week of Pearl Harbor, Japan had invaded the Philippines, Burma and Hong Kong. The Pacific war was on.