I agree, the US and Russia are not very likely to engage in direct warfare (although I dont think it impossible!). This is essentially due to the *next level* of MAD, backed with nuclear weapons, but the new front line weapon is going to be scalar technology. I do however see a new generation of "cold war brush wars" similar to VietNam, ect. N Korea is likely to be the first wave, with much of the Mid East being used as pawns.
I really dont think there is very much likelihood of any kind of extended conventional warfare between the US and Russia, especially that would lead
to large scale military invasion and occupation of the others land. Granted, the Russian military is not in the best of shape, and in very poor
morale, however, their history has long periods of invasion, and I believe Russian nationalism would be whipped up against us.
Although we have superiour technology, they have the advantage in manpower and terrain, and they do have sufficient technology to negate many of our