That was in 2002, when it looked like after years of cold war U.S. and Russia can finally become good allies. That was before U.S. along with a group of other (mostly NATO) countries invaded Iraq in 2003 without any mandate in U.N. and which Russia has opposed to and before the invasion of Libya in 2011, before U.S. carried out Arab Spring in 2010-2012 and before U.S. carried out colour revolutions, especially Rose Revolution in Georgia in 2003 and... Orange Revolution in Ukraine in 2004.

It is not a secret at all that U.S. carried those out and then it became quite clear that U.S. installs marionette regimes here and there and one of the places was... Ukraine.

Right after all those Russo-American relations going up, up and up merely some years ago.

Russia didn't like being stabbed in the back at all.