Answer:
Main Idea
On December 8, 1941, the day after the Japanese attacked Pearl Harbor, President Franklin Roosevelt delivered this "Day of Infamy Speech." Immediately afterward, Congress declared war, and the United States entered World War II
Step-by-step explanation:
Roosevelt addressed the United States Congress with his memorable “a date which will live in infamy” speech. This speech had two purposes: To urge Congress to formally declare war on Japan (which they did just minutes later), and. To rally the American people to support the war effort.