Pearl Harbor

Hawaii

Pearl Harbor

The Japanese attacked the US military at Pearl Harbor, and at places across the Pacific Ocean, to stop the United States from interfering in Japanese plans to conquer the East Indies and South Asia.

Japan plans for war with the US.

The Japanese military was asked to come up with a war plan. They proposed to go into Burma, Malaya, the East Indies, and the Philippines, and were going to put a defensive perimeter in the Pacific. They expected the U.S. to declare war but didn't think we could fight long or hard enough to win. Their biggest concern was that the U.S. could foil their plans, and to make sure that didn't happen, the Japanese navy did a surprise air attack.

A zoomed in map of where Pearl Harbor happened.

Pearl Harbor is a lagoon harbor on the island of Oahu, Hawaii. The attack on Pearl Harbor by the Empire Japan on Sunday, December 7, 1941 brought the US into World War II.