Well let's just say that despite solid agreements not to move NATOs borders eastward,...NATO (through Reagan, George Bush 1) promised Gorbachev that there would be no eastern expansion of NATO...... the Nato alliance has done nothing but move east, and is now planning to put even more troops and new army bases right on Russias doorstep....Today Russia is practically surrounded by NATO bases as former map shows....even so for further persepective as to who is and has been the moving parties are..and this against agreements with Russia:
The Soviet Union had a buffer zone of 'Warsaw Pact' allies, separating its border from the capitalist world.....
And here we have the growing strength of Nato, which has spread east ...and people wonder why Russia is drawing the line at Ukraine? Come on!