USA HISTORY

Detailed explanation-1: -The United States involvement in World War II began with the Japanese bombing of Pearl Harbor on December 7, 1941, which started a chain of events that displaced over 100, 000 Japanese Americans from their homes and businesses.

Detailed explanation-2: -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-3: -During World War II, the United States began to provide significant military supplies and other assistance to the Allies in September 1940, even though the United States did not enter the war until December 1941.

Detailed explanation-4: -The military history of the United States during World War II covers the victorious Allied war against the Axis Powers, starting with the 7 December 1941 attack on Pearl Harbor and ending with the 2 September 1945 surrender of Japan.