Pres. Jimmy Carter, left, and Soviet President Leonid Brezhnev, right, sign the documents of the SALT II Treaty in the Vienna Imperial Hofburg Palace, Monday, June 18, 1979, Vienna, Austria. Behind the head of states are from left to right: National Security Advisor Zbigniew Brzezinski, Secretary of Defense Harold Brown, Secretary of State Cyrus Vance, Soviet Foreign Minister Andrej Gromyko, Anatoly Dobrynin, Soviet Ambassador to the U.S. and Dmitry Ustinov, Soviet Foreign Minister. (AP Photo) ( Jimmy Carter Vienna SALT 1979 )