On the morning of December 7, 1941, hundreds of Japanese planes attacked the American naval base at Pearl Harbor near Honolulu, Hawaii. The attack lasted just two hours, but it had drastic effects. The Japanese destroyed nearly 20 American naval vessels, including eight HUGE battleships, and almost 200 airplanes. More than 2,000 Americans soldiers and sailors died in the attack, and another 1,000 were wounded. The day after, President Franklin D. Roosevelt asked Congress to declare war on Japan, and Congress approved his declaration. Three days later, Japanese allies Germany and Italy also declared war on the United States. More than two years into the conflict, America had finally joined World War II.