Which event directly led to the United States entering World War II in 1941? A. the London Blitz
B. the attack on Pearl Harbor
C. the capture of France by Germany
D. the Axis invasion of North Africa

B

Explanation:

THe attack on Pearl Harbor was an attack on an American military base and that thwarted FDR to declare war

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

maybe you should ask google for the answer for the question you're looking for