You sound like a Yank, not a Manc. !!!
Let us not forget that it was the good ol' USA along with Britain and Germany that funded the Bolshevik Revolution from which communism stemmed.We sent Lenin and Trotsky back to Russia. Wall Street did not want a free enterprise in Russia, their banks not only supported the Bolsheviks but also funded the Japanese to fight the Russians too. Russia lost 27 million soldiers and civilians in WW2 far more than any other country. The USA in WW2 only joined after Pearl Harbour. Yes they loaned money, and that was finally repaid in 2006.
When Cuba asked for help from Russia after the Bay of Pigs invasion, the thought of missiles on the USA doorstep nearly caused a major crisis. One similar to the Ukraine. But Ukraine has a bout a 20% ethnic Russian population, much higher in the East of Ukraine.Kharkiv, mentioned by the OP has about 60% ethnic Russians. Crimea, about 70%, and they voted to become part of Russia. Given the history of terrible losses and the fact that it is surrounded by Nato members, the thought of Ukraine adding to the list is a concern for Russian people. Indeed USA has about 50 military bases outside the USA, Russia about 10, and those are mostly on its borders.
As for posturing. Look at the wars outside WW1 WW2, the USA has been involved in the last 100 years. Haiti, Grenada,Korea, Cambodia,Cuba,Vietnam, Laos, Lebanon,Libya, Iraq, Afghanistan as well as interventions in Nicaragua and Guatamela. WMD disgrace.Probably more, and not many successes to boot.
I am afraid the Western media portrays a very one sided view of this scenario and it is important to take a balanced view. I think more and more people who know of the history of these two world powers are inclined to say Fuck USA.