Who was FDR addressing when he said a day which will live in infamy?

Answer 1

President Franklin Delano Roosevelt, about the 7th December 1941, the attack on Pearl Harbor by the Japanese navy.

Actually, the correct quote is "a DATE that will live in infamy"

Answer 2

Addressing congress ( and the nation ) about Pearl Harbor.


After the sudden attack on the US by Japan which is better known as the "Pearl Harbor Attack" in which Japanese Imperial Navy in a surprise attack bombed the US Naval base at Pearl Harbor on the 7th of Dec, 1941.
At that time the 32nd President of the US Franklin Delano Roosevelt gave a brief 7min speech to the Congress and the country about the sudden attack that took more than 2000 American lives and sunk/destroyed a number of battleships, destroyers and cruisers.
This speech came to be known in history as the "Infamy speech or day of infamy speech addressed on 8th Jan,1941, a day after the attacks in which he started describing it as 'a day which will live on in infamy'.
Considered one of the most famous US political speeches of the 20th century the Congress within an hour signed a declaration of war against Japan, and marked US's entry into the 2nd World War.

Answer 3

On December 8, 1941, President Roosevelt asked Congress for a declaration of war against Japan. He opened his remarks with the following passage: "Yesterday, December 7, 1941 -- a date which will live in infamy -- the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan." This declaration of war marked the United States's official entry into World War II.