1945 : A-Bomb dropped on Hiroshima + Nagasaki. USA ahead in the arms race.
1947 : Marshall Aid to the west of Europe. Stalin of USSR refused it for the east.
1948 : start of the Berlin Blockade - ended in 1949
1949 : NATO established; USSR exploded her first A-bomb; China becomes communist
1950 : Korean War started.
1952 : USA exploded her first hyrogen bomb.
1953 : Korean War ended. USSR exploded her first hydrogen bomb. Stalin died.
1955 : Warsaw Pact created. Peaceful coexistence called for.
1956 : Hungary revolts against USSR. Suez-Crisis.
1957 : Sputnik launched.
1959 : Cuba becomes a communist state.
1961 : Military aid sent to Vietnam by USA for the first time. Berlin Wall built.
1962 : Cuban Missile Crisis.
1963 : Huge increase of American aid to Vietnam.
1965 : USA openly involved in Vietnam.
1967 : Six-Day War in Middle East.
1968 : USSR invades Czechoslovakia.
1973 : Yom Kippur War.
1979 : USSR invaded Afghanistan.
1986 : Meeting in Iceland between USSR (Gorbachev) and USA (Reagan).
1987 : INF Treaty signed.