Which event brought the united states into world war ii ?

a. japan's attack on pearl harbor

b. italy's invasion of ethiopia

c. germany's bombing of english cities

d. germany's final solution for the jews--the holocaust

A. Japan's attack on Pearl Harbor

Explanation:

There was only one event that led the US to enter WWll. That was the Japanese attack on Pearl Harbor in what was then the Territory of Hawaii

populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.