(p. 67.) External links Article on Missile Threat Shift to the Black Sea region Video of the Endo-Atmospheric Interceptor missile system test by India Video of the Exo-Atmospheric interceptor missile system test by India Center for Defense Information Federation of American Scientists MissileThreat.com Stanley R. Mickelson Safeguard complex History of U.S. Air Defense Systems Missile defense Missile types Russian inventions Surface-to-air missiles