As the nuclear arms race progressed between the Soviet Union and the United States, both nations agreed that they desperately needed an agreement to prevent an all-out nuclear war. Both nations were rapidly producing more and more nuclear weapons that were capable of destroying the entire planet multiples of times over. Soviet leader Leonid Brezhnev and President Richard Nixon came together in an attempt to contain the production of bombs. This meeting and establishment of treaties became known as the Strategic Arms Limitation Meeting, or SALT. While the two powers commenced the negotiations on November of 1969, the treaty wasn't actually finished until May 26th of 1972. The main agreements established was the Anti-Ballistic Missile Treaty and the Interim Agreement regarding offensive weaponry. ABM, as it became known, functioned as a regulator to the amount of anti-ballistic missiles, which are missiles that are used as a protection against other missiles, that could be held. The Interim Agreement, on the other hand, regulated the amount of offensive missiles that could be held, such as nuclear missiles launched from submarines. By the end of 1972, another treaty discussion had began which became known as SALT II. This second set of treaties lasted a whopping seven years until the SALT II treaty was signed on June 18th of 1979. Located in Vienna, this treaty was signed between Soviet Leader Brezhnev and now acting president of the U.S., Jimmy Carter. Regulating the missiles was trickier the second time around due to different preference in missiles between the two countries. The Soviet Union focused on creating the larger and more destructive bombs, while the U.S., on the other hand, focused more on creating more accurate missiles. Therefore, regulations created during SALT II fixed this problem by simply establishing different regulations depending on the missiles.