Actually, the Russian Generals think that they can (under some circumstances) successfully attack US Nuclear Forces to decrease them down to the "acceptable damage level". What is even more important, they believe that with fifty of their new RS-28 Sarmat (Satan II) , with ten RE's each with all-direction attack capability they will be ready to wipe out the whole 500-point US Nuclear Force set of targets, almost without preparations, at any given moment. And then, after more or less successful counter-force strike, they will be able to blackmail the USA with possibility of their next counter-value strike.