" The Politburo now recognized that if the Union’s young draftees—already plagued by alcoholism and drug abuse—continued to be sent into the high-radiation zone, the health of an entire generation of Soviet youth could be ruined, rendering the country incapable of defending itself in the event of an attack from the West. On May 29 the Politburo and the Council of Ministers of the USSR issued a decree unprecedented in peacetime: calling up hundreds of thousands more military reservists—men aged twenty-four to fifty—for a mobilization of up to six months. They were told they were required for special military exercises; many discovered the truth only when they were already in uniform. "

― Adam Higginbotham , Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster