Cold War
pn//ˌkoʊld ˈwɔɹ//kalla kriget, kallt krig
(historical) The period of hostility short of open war between the Soviet Bloc and the Western powers, especially the United States, between 1945 and 1991.
A period of hostile relations between rivals where direct open warfare between them is largely undesired and avoided; especially, either the Cold War or Cold War II. [from 1945]