For from within, out of the heart of men,
proceed evil thoughts,
Mark 7:21
"Vladimir Putin talked about his country’s most destructive weaponry. “I want to remind you that Russia is one of the most powerful nuclear nations,” he said. “This is a reality, not just words.” 
That same day, Putin used a term for eastern Ukraine meaning “New Russia.” So when he refers to repelling “any aggression against Russia” and speaks of “nuclear deterrence,” as he did on Friday, the Russian president is really warning us he will use nukes to protect his grab of Ukrainian territory.
For more than a generation, nuclear weapons were considered defensive only. In a few short sentences on Friday, however, Putin made these devices offensive in nature, just another tool to be employed by an aggressor." TheDailyBeast