USA HISTORY

Detailed explanation-1: -On December 7, 1941, following the Japanese bombing of Pearl Harbor, the United States declared war on Japan. Three days later, after Germany and Italy declared war on it, the United States became fully engaged in the Second World War.

Detailed explanation-2: -Japan intended the attack as a preventive action. Its aim was to prevent the United States Pacific Fleet from interfering with its planned military actions in Southeast Asia against overseas territories of the United Kingdom, the Netherlands, and those of the United States.

Detailed explanation-3: -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.

Detailed explanation-4: -On December 8, 1941, the United States Congress declared war ( Pub. L. 77–328, 55 Stat. 795) on the Empire of Japan in response to its surprise attack on Pearl Harbor and subsequent declaration of war the prior day.

Detailed explanation-5: -The U.S. military suffered 18 ships damaged or sunk, and 2, 400 people were killed. Its most significant consequence was the entrance of the United States into World War II. The US had previously been officially neutral but subsequently entered the Pacific War, the Battle of the Atlantic and the European theatre of war.