What are the three main functions of the united states government?

What were some effects in world war 1 in europe ? ( and only in europe)

1. what potential advantages could companies like standard oil offer consumers?

Quick! what was germany’s main goal after world war i? a) to the united states develop the plan for the league of nations b) to make france return all of the territory it had occupied during the war c) to remain a world power d) to become allies with the united kingdom