The United States provided arms, food, soldiers to the Allied Forces in Europe. The US Navy defeated the German U-boat blockade of ports and disruption of European shipping lanes.
Answer:
Explanation:
Determinants of Foreign Policy
They shape the foreign policies of states. Domestic factors include character of the state, geography, demographics, political system/structure, leadership, economy, military capability, historical values, national interest, media and public opinion, pressure groups, and others.
It didn't allow them to settle on land west of the Appalachian mountains.
Machine guns, poison gas, tanks!