Jens Stoltenberg, the secretary general of NATO who answers to Washington declared today (Feb 19) at the Munich Security Conference that "if the Kremlin's aim is to have less NATO on its borders, it will only get more NATO." He says NATO is beefing up its forces "across the alliance," that is, in the NATO countries on Russia's borders. https://www.rt.com/russia/549979-nato-chief-reply-russia/ 

This is an extremely aggressive response to Russia's concern about missile bases placed on her borders. To speak frankly, Stoltenberg is inviting a Russian attack before she finds herself with more missile bases on her borders.

As if this isn't enough and with Russia already concerned with the unwillingness of the West to abide by any agreements, treaties, and international law, the president of Ukraine declared today at the Munich Security Conference that Ukraine was on the verge of renouncing the Budapest Memorandum in which Ukraine agreed to abstain from nuclear weapons in exchange for its independence from Russia.  As Ukraine has already broken the Minsk Agreement, there is no reason for Ukraine to keep to the Budapest Memorandum.  https://www.rt.com/russia/549994-ukraine-threatens-renounce-memorandum/ 

So, Russia goes to the US and NATO and says frankly: "You are making us uncomfortable by putting missile bases on our borders and by your plans to bring Ukraine into NATO.  This is not something we can accept.  Here is our proposal for mutual security."  And the reply is more NATO military expansion and Ukraine developing nuclear weapons.