Russia has had a hard-on for us since at least a century ( fun fact: We had military forces in Russia at the end of WWI. Look up American Expeditionary Force, Siberia), but they've had a chip on their shoulders for centuries.
I make it a note never to underestimate an opponent, but when said opponent's navy has a SINGLE aircraft carrier, which they can't put out to sea because of damage sustained when the only floating dock facility capable of servicing aforementioned aircraft carrier COLLAPSED ON-TO SAID CARRIER, well, I just got to chuckle.
I wouldn't give them much credit for military innovation, either. They got jet propulsion from captured Germans and the British. Our own fucking traitors gave them the atom bomb. In fact, the only thing the Russians have bequeathed the world is the most ass-backwards, blood-soaked ideology after Islam, and even then they got the idea from a couple of fucking Krauts. Fortunately for the Red, they didn't have to beat us on the field of battle, they merely had to subvert us from within.