The Treaty on Strategic Offensive Reductions (SORT) is a 2002 treaty between Russia and the United States limiting their nuclear arsenal to 2200 warheads each. It is the latest in a long line of treaties and negotiations on mutual nuclear disarmament between the two nations, which includes SALT I (1969-1972), ABM Treaty (1972), SALT II (1972-1979), INF Treaty (1987), START I (1991) and START II (1993).
