umm... Reagon did not defeat communism. The soviet union broke apart, one of the biggest reason was that its economy crumbled, and the people got sick of it. So there was Coup d'état.

He went to war in Grenada, saying that communists were planning to take over, but that was a huge lie, Grenada was trying to get tourism on the island. The students on the island were safe, contrary to what Reagan said.