"This paper examines the role of strategic defense in a deterrence strategy. Deterrence theory, strategic defense, the 1972 Anti-Ballistic Missile (ABM) Treaty, the national military strategy, and Global Protection Against Limited Strikes (GPALS) are reviewed. It is asserted that the roles of nuclear forces and strategic defense are complimentary and stabilizing. The options to counter the threat of future proliferation of weapons of mass destruction and the threat of accidental or unauthorized launch of ballistic missiles are examined with the conclusion that a comprehensive defense is necessary."
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/