These people have never known a world without forward deployed maneuver units - permanently based somewhere in Europe, Asia, or otherwise. The idea of pulling that back and not having as large of a standing army or marine infantry is antithetical to what these people live and breathe. They really do see themselves as peace keepers and forces for good and not, in fact, expensive drains on the economy which drags America into things it shouldn't be, weakening us for the next big war that actually matters.