Let’s assume that when the Cold War ended, the United States disbanded NATO. That, of course, wouldn’t have been too illogical given that NATO was brought into existence to protect Western Europe from Soviet aggression during the Cold War. Since the Soviet Union was dismantled with the Cold War’s end, there was certainly no reason to keep NATO in existence.
Let’s assume that Russia, on other hand, decided to keep the Warsaw Pact in existence, albeit with new members. Let’s assume that ever since 1990, the reconstituted Warsaw Pact expanded into the Western Hemisphere with such new members as Cuba, Nicaragua, Bolivia, Venezuela, Ecuador, Honduras, and Guatemala. Let’s also assume that Russia proposed a Warsaw Pact anti-missile system in Cuba, purely as a defensive measure.