Clearly, the Russian government would not make such an announcement unless it was convinced that the prospect of war with the West was real. For some time I have emphasized in my columns that the consequence of years of hostile actions taken by Washington and its European vassals against Russia was leading to war.
It is easy to understand that the massive US military/security complex needs a convincing enemy in order to justify its enormous budget, that the crazed neoconservatives put their fantasy ideology of US world hegemony above the life of the planet, and that Hillary and the Democratic National Committee will do anything to overturn Trump's presidential victory. However, it is difficult to understand why the European political leaders are willing to put their countries at risk for Washington's benefit.
Yet, they do. For example, on November 13 UK PM Theresa May said that Russia was a threat to international security and was interfering in European elections and hacking European governments. There is no more evidence for these claims than there is for "Russiagate." Yet the allegations continue and multiply. Now the European Union is organizing former provinces of the Soviet Union—Belarus, Moldova, Ukraine, Georgia, Armenia, and Azerbaijan—into an "Eastern Partnership" with the European Union. https://www.strategic-culture.org/news/2017/11/27/british-pm-makes-clear-eastern-partnership-created-damage-russia.html