Assertion: coup's support | /r/HasProperty | moscow omon
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text: Kryuchkov and Yazov's deputies, KGB general Ageyev and Army general Vladislav Achalov, respectively, planned the assault, codenamed "Operation Grom" (Thunder), which would gather elements of the Alpha and Vympel elite special force units, with the support of the paratroopers, Moscow OMON, the Internal Troops of the Dzerzhinsky division, three tank companies and a helicopter squadron.