Answer:
C. the need to create defined spaces between combatants
Answer: The correct answer is A: the United States extended its border.
i just did the quiz and got it right
hope this helps (:
Iron Curtain: A term coined by Winston Churchill about the Soviet hold on Eastern Europe
Truman Doctorine: <span>principle that the US should give support to countries or peoples threatened by Soviet forces or communist insurrection.
Marshall Plan: Giving supplies and loans to struggling nations (Notably recovering Germany) to help them build up</span>