Battle of Bataan
Japanese carrier planes attacked the United States Pacific Fleet at Pearl Harbor on the morning of 7 December 1941. Japanese aircraft also bombed the main bases of the American Far East Air Force near Manila, and the headquarters of the U.S. Asiatic Fleet in the Philippines. Many American planes were destroyed. The U.S. Asiatic Fleet withdrew its ships from its naval base in Cavite and retreated south. Only the submarine force was left to fight the Japanese.