Question

What US action in 1941 angered the Japanese and resulted in the bombing of Pearl Harbor?
The US signed the Destroyers for Bases agreement.
The US aided Indochina against Japan.
The US froze Japan’s assets and exports.
The US aided China in war against Japan.

Answer 1

The US froze Japan’s assets and cut off exports (especially oil) to Japan. This economic embargo in 1941 angered Japan and helped trigger the Pearl Harbor attack.