Question

which event forced the united states to end its policy of isolationism during wwii? the japanese attack on pearl harbor the nazi aerial blitzkrieg of london the nazi invasion and conquest of france the german u - boat attack on a us passenger vessel

Explanation:

The Japanese attack on Pearl Harbor on December 7, 1941, was a direct military strike against the United States. This event shocked the nation and led to a significant shift in public opinion. Prior to this attack, the U.S. had been following a policy of isolationism, aiming to stay out of the war in Europe and Asia. However, the unprovoked attack on Pearl Harbor forced the U.S. to abandon its isolationist stance. The other options - the Nazi aerial blitzkrieg of London, the Nazi invasion and conquest of France, and the German U - boat attack on a US passenger vessel - while significant events in the war, did not have the same direct impact on the U.S. decision - making process regarding its isolationist policy as the Pearl Harbor attack.

Answer:

the Japanese attack on Pearl Harbor