Where is the Russian Army positioned and what is it ready to do?

Les explains that he read the Russian Army is east of the Ural Mountains and is poised there. He says it is ready to move whenever the authorities tell it to move. In the surrounding context, he ties this to the Warsaw Pact military still being relatively intact, even though communism was falling apart. He also notes an agreement that the East German Army would remain in the Warsaw Pact for at least another four years, and he says that four years still was not up. Whether that was true he did not know, but he felt the Warsaw Pact military remained a viable military force.