No, Russia Isn't Trying to Make Nuclear War Easier (Olga Oliker, The National Interest)

Somehow, the notion that Russia has lowered its nuclear threshold has become a truism in recent years. Analysts and officials alike repeat the conventional wisdom that Russia’s doctrine is one of “escalate to de-escalate.” They reference Russian development of small-scale nuclear weapons, or nuclear“scalpels,” and Russian modernization more generally as evidence of the danger Russia poses. These arguments are used often, if not always, to indicate that the United States and its NATO allies should also consider lowering theirnuclear threshold and/or developing new, smaller, more usable nuclear systems

http://nationalinterest.org/feature/no-russia-isnt-trying-make-nuclear-war-easier-16310