The head of the USSR’s civil defense—the branch of the Soviet armed forces responsible for protecting civilians in the event of natural disaster, nuclear war, or chemical attack—was away at a conference in Lvov, in western Ukraine. The marshal found him by telephone and gave instructions to deploy immediately the mobile radiation reconnaissance unit of civil defense stationed in Kiev. He also alerted the special Soviet army brigade dedicated to dealing with radioactive contamination, based east of the Volga River, and arranged for men and equipment to be airlifted to Chernobyl. By the time he
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