John T. Corell (1 juni 2012). ”They Called It Star Wars” (på amerikansk engelska). Air Force Magazine. https://www.airforcemag.com/article/0612starwars/. Läst 15 maj 2021. ”Ballistic Missile Defense made something of a comeback in the late 1990s when North Korea fired a Taepo Dong missile 1,000 miles across Japan into the Pacific Ocean and the Clinton Administration became concerned about the acquisition of missiles by rogue nations.”