The wartime alliance between the united states and the soviet union unraveled into a worldwide rivalry that lasted 46 years. what was the term used for this rivalry?

The answer is the Cold War. The Cold War was the big conflict between the communist Soviet Union and its associates counter to the United States and its Western associates that instigated subsequently to World War II. The formation of NATO facilitated to stop the Cold War from being a hot war that would have directed the world to atomic Armageddon.