1969 – SALT I negotiations begin


Soviet and U.S. negotiators meet in Helsinki to begin the Strategic Arms Limitation Talks (SALT). The meeting was the climax of years of discussions between the two nations concerning the means to curb the Cold War arms race. 

Director of the Arms Control and Disarmament Agency Gerard Smith was put in charge of the U.S. delegation. At the same time, National Security Advisor Henry Kissinger began negotiations with the Soviet ambassador in America. The negotiations continued for nearly three years, until the signing of the SALT I agreement in May 1972.Talks centered around two main weapon systems: anti-ballistic missiles (ABM) and multiple independent re-entry vehicles (MIRVs- missiles with multiple warheads, each capable of striking different targets). 

Source: history.com