The Presidential Address to Congress of December 8, 1941 (known as the Infamy Speech or Day of Infamy Speech) was delivered at 12:30 p.m. that day to a Joint Session of Congress by United States President Franklin D. Roosevelt, one day after the Empire of Japan's attack on Pearl Harbor Naval Base, Hawaii. The name derives from the first line of the speech: Roosevelt describing the previous day as "a date which will live in infamy".
Within an hour of the speech, Congress passed a formal declaration of war against Japan and officially brought the U.S. into World War II. The address is regarded as one of the most famous American political speeches of the 20th century.
The Infamy Speech was brief, running to just a little over seven minutes. Secretary of State Cordell Hull had recommended that the president devote more time to a fuller exposition of Japanese-American relations and the lengthy but unsuccessful effort to find a peaceful solution. However, Roosevelt kept the speech short in the belief that it would have a more dramatic effect.