DBWI: Cold war has ended

As we all know, since the Iron Curtain speech, the cold war between the communism world and the Free world has lasted for more than 70 years. So if in an alternate history, the cold war has ended, how and when would it end?
 
I can't see anything else way finish that as full-scale nuclear war which effectively finishes whole humankind/most of that.
 
As we all know, since the Iron Curtain speech, the cold war between the communism world and the Free world has lasted for more than 70 years. So if in an alternate history, the cold war has ended, how and when would it end?
If the expert's guesses are correct then the USSR was very very reliant on oil durring the 70s, 80s, and 90s. Have the Iran-Iraq War not explode into a general Sunni-Shia holy war and the price of oil is much lower durring this period, meaning that the USSR will have to either cut military spending (effectively losing the arms race with the USA) or try to maintain it by spending an even larger percent of its wealth on the military (which could be a recipe for disaster). Furthermore, without a tidal wave of middle easter refugees flooding into eastern Europe, people of the Warsaw Pact countries may focus more on the failings of their government and we may see a communist equivalent to the Protests of 1968.
 
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