Previously, we saw how the Japanese military took advantage of the situation in China to invade Manchuria in 1931 and China in 1937. Allied to Germany & Italy in 1940, the Japanese made the fateful decision on 7 Dec 1941, to attack the Americans at Pearl Harbour starting the war in the Pacific.
Quiz 3: Why did Japan attack Pearl Harbour?
Follow the animation to find out more about the Japanese attack on Pearl Harbour.
credit: http://www.discoverychannel.co.uk/ww2_home/pearl_harbour/pearl_harbour.shtml