Ref the KC-135's. If you have ever been to Tinker AFB and look into the refurb hangers. To see a bare metal KC-135 awaiting a complete make over including new engines, is a sight worth seeing. And its not only one aircraft. Not knowing what goes on in Cambridge, when was the last time any of our AT got that treatment.
Biggest differance is the US will spend the money to get the most out of their A/C (C-5M, B-52H)