USA HISTORY

Detailed explanation-1: -Although SALT II resulted in an agreement in 1979 in Vienna, the US Senate chose not to ratify the treaty in response to the Soviet invasion of Afghanistan, which took place later that year.

Detailed explanation-2: -Although it was never ratified by the U.S. Senate, both countries adhered to the terms of the agreement.

Detailed explanation-3: -On June 17, 1979, Carter and Brezhnev signed the SALT II Treaty in Vienna. SALT II limited the total of both nations’ nuclear forces to 2, 250 delivery vehicles and placed a variety of other restrictions on deployed strategic nuclear forces, including MIRVs.

Detailed explanation-4: -In June 1979, Carter and Brezhnev met in Vienna and signed the SALT-II agreement. The treaty basically established numerical equality between the two nations in terms of nuclear weapons delivery systems. It also limited the number of MIRV missiles (missiles with multiple, independent nuclear warheads).