World Ward 2

World War II

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"The Second World War" and "WWII" redirect here. For other uses, see The Second World War (disambiguation) and WWII (disambiguation).

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World War II

Infobox collage for WWII.PNG

Clockwise from top left: Chinese forces in the Battle of Wanjialing, Australian 25-pounder guns during the First Battle of El Alamein, German Stuka dive bombers on the Eastern Front in December 1943, a US naval force in the Lingayen Gulf, Wilhelm Keitel signing the German Instrument of Surrender, Soviet troops in the Battle of Stalingrad

Date

1 September 1939 – 2 September 1945 (6 years, 1 day)[a]

Location

Europe, Pacific, Atlantic, South-East Asia, China, Middle East, Mediterranean, North Africa and Horn of Africa, briefly North and South America

Result

Allied victory

Collapse of the Third Reich

Fall of Japanese and Italian Empires

Creation of the United Nations

Emergence of the United States and the Soviet Union as superpowers

Beginning of the Cold War (more...).

Belligerents

Allies Axis

Commanders and leaders

Allied leaders

Soviet Union Joseph Stalin

United States Franklin D. Roosevelt

United Kingdom Winston Churchill

Republic of China (1912–49) Chiang Kai-shek

Axis leaders

Nazi Germany Adolf Hitler

Empire of Japan Hirohito

Kingdom of Italy Benito Mussolini

Casualties and losses

Military dead:

Over 16,000,000

Civilian dead:

Over 45,000,000

Total dead:

Over 61,000,000 (1937–45)

...further details Military dead:

Over 8,000,000

Civilian dead:

Over 4,000,000

Total dead:

Over 12,000,000 (1937–45)

...further details

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Campaigns of World War II

World War II

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World War II (WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, though related conflicts began earlier. 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 over 30 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 (during which approximately 11 million people were killed)[1][2] and the strategic bombing of industrial and population centres (during which approximately one million people were killed, including the use of two nuclear weapons in combat),[3] it resulted in an estimated 50 million to 85 million fatalities. These made World War II the deadliest conflict in human history.[4]

The Empire of Japan aimed to dominate Asia and the Pacific and was already at war with the Republic of China in 1937,[5] but the world war is generally said to have begun on 1 September 1939[6] with the invasion of Poland by Germany and subsequent declarations of war on Germany by France and the United Kingdom. From late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Following the Molotov–Ribbentrop Pact, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, including Poland, Finland and the Baltic states. The United Kingdom and the British Commonwealth were the only Allied forces continuing the fight against the Axis, with campaigns in North Africa and the Horn of Africa as well as the long-running Battle of the Atlantic. In June 1941, the European Axis powers launched an invasion of the Soviet Union, opening the largest land theatre of war in history, which trapped the major part of the Axis' military forces into a War of Attrition. In December 1941, Japan attacked the United States and European territories in the Pacific Ocean, and quickly conquered much of the Western Pacific.

The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, near Hawaii, and Germany was defeated in North Africa and then, decisively, at Stalingrad in the Soviet Union. In 1943, with a series of German defeats on the Eastern Front, the Allied invasion of Italy which brought about Italian surrender, and Allied victories in the Pacific, the Axis lost the initiative and undertook strategic retreat on all fronts. In 1944, the Western Allies invaded France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy and captured key Western Pacific islands.

The war in Europe ended with an invasion of Germany by the Western Allies and the Soviet Union culminating in the capture of Berlin by Soviet and Polish troops and the subsequent German unconditional surrender on 8 May 1945. Following the Potsdam Declaration by the Allies on 26 July 1945, the United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki on 6 August and 9 August respectively. With an invasion of the Japanese archipelago imminent, the possibility of additional atomic bombings, and the Soviet Union's declaration of war on Japan and invasion of Manchuria, Japan surrendered on 15 August 1945. Thus ended the war in Asia, and the final destruction of the Axis bloc.

World War II altered the political alignment and social structure of the world. The United Nations (UN) was established to foster international co-operation and prevent future conflicts. The victorious great powers—the United States, the Soviet Union, China, the United Kingdom, and France—became the permanent members of the United Nations Security Council.[7] The Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Asia and Africa began. Most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities and to create a common identity.[8]

Contents [hide]

1 Chronology

2 Background

3 Pre-war events 3.1 Italian invasion of Ethiopia (1935)

3.2 Spanish Civil War (1936–39)

3.3 Japanese invasion of China (1937)

3.4 Japanese invasion of the Soviet Union and Mongolia (1938)

3.5 European occupations and agreements

4 Course of the war 4.1 War breaks out in Europe (1939–40)

4.2 Western Europe (1940–41)

4.3 Mediterranean (1940–41)

4.4 Axis attack on the USSR (1941)

4.5 War breaks out in the Pacific (1941)

4.6 Axis advance stalls (1942–43)

4.7 Allies gain momentum (1943–44)

4.8 Allies close in (1944)

4.9 Axis collapse, Allied victory (1944–45)

5 Aftermath

6 Impact 6.1 Casualties and war crimes

6.2 Concentration camps, slave labour, and genocide

6.3 Occupation

6.4 Home fronts and production

6.5 Advances in technology and warfare

7 See also

8 Notes

9 Citations

10 References

11 External links

Chronology

See also: Timeline of World War II

The start of the war in Europe is generally held to be 1 September 1939,[9][10] beginning with the German invasion of Poland; Britain and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937,[11] or even the Japanese invasion of Manchuria on 19 September 1931.[12][13]

Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously and the two wars merged in 1941. This article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935.[14] The British historian Antony Beevor views the beginning of the Second World War as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939.[15]

The exact date of the war's end is also not universally agreed upon. It was generally accepted at

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