EnlargeDownload Link Citation: "Day of Infamy" Speech by Franklin D. Roosevelt, December 8, 1941; SEN 77A-H1, Records of the United States Senate; Record Group 46; National Archives. View All Pages in the National Archives Catalog View Transcript 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. On December 7, 1941, ...