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In the 1960s, as dissent and protest swept through the West, nations of the Warsaw Pact were experimenting with reforms. But hopes for change were crushed by palace coups and, in the case of Czechoslovakia, outright invasion.
In the 1960s the United States claimed its place as the world's leading defender against communism. But by the end of the decade, the nation was convulsed by dissent, riot, assassination and an increasingly unpopular war.
The emergence of the People's Republic of China signals a new and dangerous phase in the Cold War. But a split between Moscow and Beijing opens the door for a change in U.S.-Chinese relations