On December 7, 1941, 353 aircraft of the Empire of Japan attacked the
U.S. naval base at
Pearl Harbor, inflicting mass destruction on American life and property and drawing the
United States into the Second World War. On December 8, in response to the attack, the United States
declared war on Japan. , 1938 Three days later, at 2:45 PM on December 11, 1941, Italian dictator
Benito Mussolini announced—from the balcony overlooking the
Piazza Venezia in
Rome—that Italy and Germany would "participate from today on the side of heroic Japan" against the United States. stood alongside Mussolini during the speech. German ambassador
Hans Georg von Mackensen was also present. At 2:30 PM on December 11, just before Mussolini's speech, Italian Foreign Minister
Galeazzo Ciano called for chargé d'affaires Wadsworth and revealed that Italy was at war with America, to which Wadsworth responded: "It is very tragic." Ciano recorded his thoughts on the occasion, saying, “It was three o’clock in the afternoon, the people were hungry, and the day was quite cold. These are all elements that do not make for enthusiasm.” On December 11, the Axis powers also signed the "
No Separate Peace Agreement," pledging each nation to not independently make peace with Britain or America, a decision that theoretically bound Italy, Germany, and Japan to a common fate. Mussolini "expressed no reservations about war with America," and laid responsibility for the conflict at the feet of President Roosevelt. == Text of the declaration ==