The purpose of the SALT I agreement in 1972 was to

SALT I, signed by the United States and the Soviet Union in 1972, was the first major Strategic Arms Limitation Talks agreement. It limited certain strategic nuclear weapons and regulated the growth of Soviet and U.S. missiles capable of carrying nuclear warheads. It did not concern China or formally end the Cold War, so the best choice is “regulate Soviet production of missiles carrying nuclear weapons.”

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