The attack was planned by Admiral Isoroku Yamamoto, who commanded the Japanese aircraft carriers during the raid on U.S. Pacific Fleet at Pearl Harbor. Sources say the main motive behind the attack was to conquer most of the Pacific and South East Asia and to neutralize the U.S. Pacific .
The attack on Pearl Harbor thrust the United States into World War II. The attack had significant and far-reaching political effects on the United States, changing the minds of many who had been philosophically opposed to war or who had taken a passive stance towards the war in Europe. The increasing diplomatic confrontations and economic sanctions against Japan by the United States and others, compounded by Japan’s undeclared war in China and the weakening of European control in Asian colonies, precipitated the war in the Pacific. The Japanese military leaders recognized American naval strength as the chief deterrent to war with the United States. Early in 1941 They Attacked American beach while French, Chinese, and Dutch territories in Southeast Asia.
