What was the biggest result of the Pearl Harbor attack on the global war?

Correct answer: The USA entered the war actively

Direct answer: A. Japan attacked the United States naval base at Pearl Harbor in Hawaii on 7 December 1941. The attack led the United States to declare war on Japan and enter World War II directly. Germany and Italy then declared war on the United States, widening the conflict further. The attack therefore changed the scale and global importance of the war, although fighting had already begun in Europe and Asia before Pearl Harbor. B is wrong because the Renaissance occurred centuries earlier. C is historically false; France did not rule the United States. D is wrong because the Soviet Union did not dissolve immediately and continued fighting in the war. Memory cue: Pearl Harbor, Japan, and 1941 led to active American entry into World War II.