The talks culminated in START, or Strategic Arms Reduction Treaties, which included START I (a 1991 agreement between the United States and the Soviet Union) and START II (a 1993 agreement between the United States and Russia that was never ratified by the United States), both of which proposed restrictions on multiple warhead capabilities and other restrictions on the number of nuclear weapons on both sides. A successor to START I, New START, was proposed and finally ratified in February 2011. As its title suggests, “the Interim Agreement between the United States and the Union of Soviet Socialist Republics on Certain Measures to Limit Offensive Weapons” was limited in duration and scope. It is expected to remain in force for five years. (See the previous section on SALT.) The two countries have pledged to continue negotiations for a more comprehensive agreement as soon as possible and the scope and terms of a new agreement should not be affected by the provisions of the 1972 agreement. In August 1972, the U.S. Senate overwhelmingly approved the deal. SALT-I, as it was called, served as the basis for all subsequent discussions on arms restrictions. An agreement to limit strategic launchers was reached in Vienna on 18 June 1979 and signed by Leonid Brezhnev and Carter at a ceremony in the Imperial Hofburg Redoubtnsaal.  Negotiations began in Helsinki, Finland, in November 1969.  SALT I led to the Ballistic Missile Defense Treaty and an interim agreement between the two countries.
Although SALT II led to an agreement in 1979, the U.S. Senate decided not to ratify the treaty in response to the Soviet war in Afghanistan that took place later that year. The Soviet legislature did not ratify it either. The agreement expired on 31 December 1985 and has not been renewed. Negotiations lasted from 17 November 1969 to May 1972 in a series of meetings that began in Helsinki with the American delegation led by Gerard C. Smith, Director of the Agency for Arms Control and Disarmament. Subsequent sessions alternated between Vienna and Helsinki. After a long stalemate, the first results of SALT I came in May 1971, when an agreement was reached on ABM systems.
Further talks concluded negotiations on 26 September. In May 1972, Richard Nixon and Leonid Brezhnev signed the Treaty on Ballistic Missile Defense and the Interim Agreement between the United States of America and the Union of Soviet Socialist Republics on Certain Measures to Limit Strategic Offensive Weapons.  Intensive research has been conducted to find ways to examine possible agreements without the need for access to the territory of the other party. Both the ABM Treaty and the Interim Agreement stipulate that compliance must be achieved by “national technical means of verification”. In addition, the agreements contain provisions that are important steps to strengthen security against violations: both parties undertake not to interfere with national technical means of verification. In addition, both countries undertake not to use deliberate obfuscation measures to obstruct the review. Mobile intercontinental ballistic missiles are not covered. The Soviet Union considered that it should not be frozen, since neither side had such systems; It also spoke out against banning them in a future comprehensive agreement. The United States considered that they should be banned because of the verification difficulties they caused. In an official statement, the U.S.
delegation said the U.S. would consider the use of land-based intercontinental ballistic missiles during the term of the agreement to be inconsistent with its objectives. Official text: media.nti.org/documents/salt_1.pdf After the failure of the first attempts to reach a comprehensive agreement, the Soviets tried to limit negotiations to missile defense systems, saying that restrictions on offensive systems should be postponed. The U.S. position was that limiting ABM systems would be incompatible with SALT`s core objectives, but allowing for the unrestricted growth of offensive weapons, and that it was important to at least begin to limit offensive systems. A long stalemate on this issue was eventually overcome by exchanges at the highest levels of the two governments. On the 20th. In May 1971, Washington and Moscow announced that an agreement had been reached to focus on a permanent treaty to limit ABM systems, but at the same time to elaborate certain restrictions on offensive systems and continue negotiations on a more comprehensive and long-term agreement on them.
The Strategic Arms Limitation Talks (SALT) were two series of bilateral conferences and corresponding international treaties involving the United States and the Soviet Union, the superpowers of the Cold War, on the issue of arms control. The two rounds of talks and agreements were SALT I and SALT II Strategic Arms Limitation Talks (SALT), negotiations between the United States and the Soviet Union aimed at restricting the production of strategic missiles capable of carrying nuclear weapons. The first agreements, known as SALT I and SALT II, were signed in 1972 and 1972 respectively. Signed in 1979 by the United States and the Union of Soviet Socialist Republics, it aimed to limit the arms race on strategic ballistic missiles (long-range or intercontinental) armed with nuclear weapons. First proposed by US President Lyndon B. Johnson In 1967, the two superpowers agreed in the summer of 1968 on strategic arms control talks, and in November 1969, comprehensive negotiations began. The United States repeated its accusation of January 1984 that the USSR had violated certain provisions of the Treaty […].