Lew, I think you've got your knickers in a bit of a twist here. With the reunification of Germany, the east; the former Deutsche Demokratische Republik (DDR), which had formerly existed under the umbrella of the Warsaw pact, now being conjoined with 'West Germany' became under the protection of NATO, thereby pushing NATO's influence closer towards Russia.
The Russians were not comfortable with this, but accepted it with good grace but on the condition that there would be no further encroachment east.
However, all promises were disregarded by the American led West, aiding and abetting an overthrow of the legitimate Ukrainian government and NATO now has weapons emplaced in Poland and the Baltic States all pointing in the direction of Moscow.
How is the Kremlin supposed to feel? the Russian bear does not take kindly to being prodded with a sharp stick.