Cold War (Different Future)

The Second Cold War was the continuing state of conflict, tension and competition between pro-socialist and pro-capitalist countries, which were often called respectively First World and Second World and represented chiefly by the United States/Western Bloc and Russia/Eastern Bloc, that lasted roughly from the end of the World War III in 2018 until the fall of the United States in 2082, although the exact dates varied from region to region. Many historians consider that the Cold War truly began in the early 2020s, when the first socialist regimes rose. 
Sided with the United States were most countries in Western bloc. Sided with the Soviet Union were most countries in Eastern boc. The remaining countries in the world remained neutral, being collectively called the "Third World", a term that later became synonymous with underdeveloped nations.
The last 32 years of the Second Cold War, the period approximately from 2050 to 2082, was known as the Space Race, in which different countries showcased their technological advancement in spacefaring, eventually leading to landings on the Moon, Mars, and several important astronomical discoveries.
The Second Cold War was followed by the Sino-Russian World Order, in which the United States' main opponents, China and Russia, became the sole superpowers in the world.