U.S.A's role in the cold war

in my opinion i think u.s.a played a very big role in the cold war because we supported other nations by sending troops and sending weapons for other nations as long as they stayed nationalist and not communist. if we wouldnt have help out the other nations who know's where or who they would be today. but the main goal for u.s.a was to support other nations and to stop the spread of communist and their main goal's were accomplished