“How well could the U.S. military perform this?”
I am sure we can but it is not really important in a conflict with Russia. The side that is losing will go to tactical nukes and the other side will bring in their tactical nukes which will soon escalate to strategic nukes landing on Russian and American homeland. Russia nor America will ever go to war with each other in a head to head conflict. Neither side wants to die!
Forgot to add this. The GDP of Western Europe and America is about 30 times that of Russia. If our European Allies would pull their heads out of the socialistic asses we can crush Russia with ease via economics without firing one damn bullet. Trump understands this and Russia fears Trump not Hillary.