¥Under
Kennedy, the US policy shifts from Òmassive
retaliationÓ to Òflexible response:Ó the ability
to respond in kind to any Soviet aggression;
conventional arms race with the Soviet Union
heats up
¥US
involvement in Vietnam
¥Period
of dŽtente with the Soviet Union; SALT talks
under Nixon
¥DŽtente
comes to an end in the late Ô70s during the Carter administration