Posted for your information and comment:
We have seen had huge changes in the way the Army fights. It isn't just the flirtation with conventional troops doing COIN. ( U.S. troop-intensive COIN has indeed gone out of intellectual fashion, but not I think a more FID-ish COIN.) It also is:
- An Army that does indeed win first battles but still doesn't believe that war termination is its business. (See the Bacevich piece in the Moten volume.)
- An Army whose generals frequently do not seem to be able to think strategically, and treats those who do as outliers.
- An Army that cannot fight without the presence of thousands of mercenaries on the battlefield, subject to neither local law nor military justice, and so polluting American efforts.
- An Army that has fought our first sustained overseas war (and in fact, 2 of them) without a draft. (The all-volunteer force has proven remarkably cohesive and resilient under the resulting stress.)
- The one area where the Army seems genuinely comfortable is the technological, with information systems rapidly advancing, especially the use of drone aircraft for reconnaissance.