Russia is also already preparing for nuclear war, by the way.
Russia may be doing civilian nuke drills, but it only serves as a media stunt and brainwashing of their citizens to view the west as the aggressor.
But they won't use them because just using a couple hundred nukes in a typical scenario with two small-medium countries going at it, would put up enough dust to cloud the air for 10 years and kill a billion people from lack of crops alone. We only need nukes, ready to use at a moment's notice, so as to be a credible threat and thus a successful deterrent.
And this is even more off topic from the political discussion here, but on the subject of WMDs...
There are far more destructive WMDs in the very near future, possibly already in existence but not public knowledge. Namely, CRISPR made bio weapons and even worse, a super intelligent AI. There's a couple really good TED talks on these subjects that came out in recent months.
The latter being way more scary when you imagine an AI with average human intelligence, processing each logical operation 1 million times faster than a human brain (typical computer speeds right now), with flawless recollection ability. Meaning a country developing that first, leaving it on for just 6 months, would create a beyond human mind with the eqvuilanent of 500,000 years experience that could develop weapons beyond our comprehension.