What pivotal event led the united states to enter world war ii? japan’s attack on pearl harbor japan’s takeover of china japan’s attack on midway island japan’s takeover of southeast asia

A). Japan's attack on Pearl Harbor.

On December 7, 1941 the Imperial Japanese Navy Air Service launched a surprise military attack at Pearl Harbor - an American naval base.- This attack caused eight damaged U.S battleships and 4 were sunk.

Due to this surprise attack, the United States entered World War II.

On December 8, the United States declared war on Japan and on December 11 Italy and Germany declared war on the United States.

after the french-indian war.

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.