Concur. The notion that the US always loses wars is bullshit. Typically they achieve their military objectives in days, if not hours. And the casulties they take while doing so, are unbelievably low by historical standards. There is simply no comparison. If the Americans want to smash you, you're toast, no matter who you are.
Where these things are lost, is where politics gets involved: the utter catastrophe of the occupation in Iraq was brought to us by the utterly useless, moron American Right (mostly followers of Leo Strauss, who are criminally stupid, yet fancy themselves as philosopher-kings) and its lackeys, namely, Paul Bremer (who should be stabbed in the head because of his sheer stupidity -- EVERYTHING that right-wingers touched in Iraq turned to shit.)
Given the terrible leadership we see in the West these days, it's nothing compared to the joke the Russians must endure now. Everyone thinks that Putin is some kind of insane strategic genius and that he's playing chess while us stupid imperialists are playing checkers. See the state of their economy to decide for yourself whether or not this is actually true. At least when our moron leaders screw up, we can blame ourselves for electing them. The Russians, with their laughable Potemkin democracy, don't even get that.