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The U.S entered World War II in 1941, when Japan bombed Pearl Harbor. America declared war on Japan, and Japan's allies, Germany and Italy, declared war on America. The Allies (Americas "team") won the war in 1945 because The Axis Powers were out numbered and out thought . While the Allies were pouring more and more Troops into the war, the Axis were loosing ground and resources very quickly. The Germans were surrounded in Europe and blockaded by the British, and the Russians coming in from the east killing half of the German army in the war, the Allies landing in Normandy rapidly Liberating France. Plus, Hitler killed himself so...

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14y ago

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