This will not be a popular suggestion.
Do you think we need this big of military? Do you think we can train just as hard in the simulators and be just as effective?
I know in the heavy world we could move most of the training into the simulators (if it hasn't been already) and remain safe and mission capable. We should not be burning 18,000 lbs and hour for a KC-10 to be conducting instrument approach training.
I know many people will disagree with me. But I think it could be done -- at least for the short term.