World War II: Causes and Timeline | HISTORY
World War II was the biggest and deadliest war in history, involving more than 30 countries. Sparked by the 1939 Nazi invasion of Poland, the war dragged on for six bloody years until the Allies defeated the Axis powers of Nazi Germany, Japan and Italy in 1945. Explore the battles, leaders and atrocities from the war and its impact on geopolitics and humankind.
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World War II
World War II, the largest and deadliest conflict in human history, involved more than 50 nations and was fought on land, sea and air in nearly every part of the world.
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American Women in World War II
It was all hands on deck as Americans pitched into a second World War effort after the attack on Pearl Harbor in 1941.
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Why Did Japan Attack Pearl Harbor?
By the time the first Japanese bomber appeared over Pearl Harbor on December 7, 1941, tensions between Japan and the United States had been mounting for the better part of a decade, making war seem inevitable.
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