
Cold War (1985–1991)
Mikhail Gorbachev's reforms from 1985, combined with a series of summits with Ronald Reagan and the Soviet abandonment of the Brezhnev Doctrine, opened the way for Eastern European communist governments to collapse peacefully through 1989, culminating in German reunification and the Soviet Union's own dissolution by December 1991. Historians remain divided over whether Soviet economic decay, Gorbachev's genuine ideological conviction, or Western pressure deserves primary credit, a debate the evidence supports multiple readings of rather than settling definitively.






























































































