The Able Archer controversy has featured numerous descriptions of the exercise as so "routine" that it could not have alarmed the Soviet military and political leadership. Today's posting reveals multiple non-routine elements, including: a 170-flight, radio-silent air lift of 19,000 US soldiers to Europe, the shifting of commands from "Permanent War Headquarters to the Alternate War Headquarters," the practice of "new nuclear weapons release procedures," including consultations with cells in Washington and London, and the "sensitive, political issue" of numerous "slips of the tongue" in which B-52 sorties were referred to as nuclear "strikes." These variations, seen through "the fog of nuclear exercises," did in fact match official Soviet intelligence-defined indicators for "possible operations by the USA and its allies on British territory in preparation for RYaN"—the KGB code name for a feared Western nuclear missile attack.