These talks led to the 1972 Strategic Arms Limitation Treaty (SALT I), which froze the number of nuclear missiles (ICBMs) on both sides at current levels for five years. These agreements limiting nuclear weapons contributed greatly to dÃ©tente (the relaxation of Cold War tensions) during this period. Nixon's successor as president, Gerald Ford, met with Khrushchev's successor, Leonid Brezhnev, in Siberia at Vladivostok to discuss more arms control. Ford laid the groundwork for SALT II, a second treaty which would be signed by Brezhnev and President Jimmy Carter in Vienna a few years later.