Explain the events that forced the United States to enter WWI

Japanese blowing up the harbor, and starting the war

Explanation:

Japan decided to attack the us harbor around the beggining of WWI and the us attacked as well. the war raged on and on for years until finally the us won.

I hope my answer helps you.

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.