Japan and the united states naval base because they were enemies in world war 2 happen. What happen all of these events occurred on December 7th. It was on December 7th, 1941 that 353 Japanese bombers attacked the United States naval base at pearl harbor. destroying 19 ships, 188 aircraft and killing over 2,000 Americans. It was this act that drove the United States into World War II. The pearl harbor happened at December 7. 1941. The pearl harbor happened at pearl harbor navy base Hawaii territory. The japanese flyed in the planes and the navy people seen a red symbol of the rising sun. there is 360 warplanes followed on the U.S naval base at Hawaii territory. The surprise attack struck a critical blow against the U.S pacific