cold war means war without armed conflict. it was between USA and USSR . USA wanted the world to adopt capitalism while USSR wanted the world to adopt communism. In this way the relationships between the two superpowers were not good. Both build sophisticated nuclear weapons. USA send it's forces into Vietnam but north Vietnam supported communism. Also known as the Vietnam war, USSR won . Then USSR send it's forces into Afghanistan but USA supported Afghanistan and provided them with weopans. USA won the war in Afghanistan and the USSR broke