USA HISTORY

Detailed explanation-1: -On December 7, 1941, the Japanese military launched a surprise attack on the United States Naval Base at Pearl Harbor, Hawaii. Since early 1941 the U.S. had been supplying Great Britain in its fight against the Nazis. It had also been pressuring Japan to halt its military expansion in Asia and the Pacific.

Detailed explanation-2: -Pearl Harbor is a U.S. naval base near Honolulu, Hawaii, that was the scene of a devastating surprise attack by Japanese forces on December 7, 1941.

Detailed explanation-3: -By attacking Pearl Harbor Japan believes that it can severely cripple the U.S fleet and buy them time in the Pacific and Southeast Asia. So not only would they be able to launch their attacks without interference from the U.S they would also have time to dig in defensively and consolidate their gains.