The U.S. attached an island belonging to Japan.

The U.S. had cut off trade and sanctioned Japan due to their actions.

The U.S. spoke negatively of Japan and said they would attack regardless.

Japan felt like attacking randomly.

November 7, 1990 and in Laredo, Texas

March 22, 1945 and in Austin, Texas

November 11, 1919 and in London, England

December 7, 1941 and in Pearl Harbor, Hawaii.

The U.S. strategy of island hopping had disturbed Pacific trade routes.

The Japanese naval fleet had been defeated at the Battle of Midway.

Japanese Americans had been relocated to internment camps.

U.S. trade sanctions had caused shortages of oil, gas, and rubber.

the implementation of sanctions against Japan

U.S. entry into World War II

the establishment of the Truman Doctrine

U.S. annexation of Hawaii