On December 7, 1941, Japanese forces launched a surprise attack on the U.S. naval base at Pearl Harbor in Hawaii. The first wave of attacks began around 8:00 am local time, as Japanese planes bombed American battleships and military installations. Over 2,400 Americans were killed and 1,178 were wounded in the two-wave attack. The following day, President Franklin D. Roosevelt addressed Congress and called for a formal declaration of war against Japan, saying the attack was "a date which will live in infamy."