Cold War By Jorria34 Period: 1948 to 1949 the Berlin Blockade 1949 China becomes communist 1955 Warsaw Pact created 1959 Cuba becomes a communist state 1961 Berlin Wall built 1965 USA openly involved in Vietnam 1968 USSR invades Czechoslovakia 1979 USSR invaded Afghanistan 1986 Meeting in Iceland between USSR and USA 1987 INF Treaty signed