Answer: We were shocked and angry for what the Japanese did to Pearl Harbor. After Pearl Harbor Franklin D. Roosevelt ask Congress to declare war on Japan, which they did with and almost-unanimous vote.
Explanation: "The attack on Pearl Harbor left more than 2,400 Americans dead and shocked the nation, sending shock waves of fear and anger from the West Coast to the East. The following day, President Franklin D. Roosevelt addressed Congress, asking them to declare war on Japan, which they did by an almost-unanimous vote."