October 6-11, 1985: US Proposes Broader Interpretation of ABM Treaty

National Security Adviser Robert McFarlane, speaking for the Reagan administration, proposes a new, “broad” interpretation of the US-Soviet Anti-Ballistic Missile (ABM) Treaty (see May 26, 1972) on national television. McFarlane proposes that space-based and mobile systems and components based on “other physical principles,” i.e. lasers, particle beams, etc., should be developed and tested, but not deployed. (The traditional, “narrow” interpretation of the treaty is more restrictive.) Days later, President Reagan announces that while he and his administration support this “broad” interpretation, as a matter of national policy, the US’s Strategic Defense Initiative (see March 23, 1983) will continue to observe the more traditional interpretation. [Federation of American Scientists, 1/15/2008]