Look at Ukraine, Russia has not been able to collapse the government there so far, and it has an army of one and a half million fighting there, and has been bombing Ukraine for four years now. Russia has a far better situation logistically being situated right next to Ukraine and being able to transport troops and materiel by rail. Based on that, in what possible universe, does the US manage to break a country three times the size of Ukraine that's half away across the globe from it?