Maybe the DoD is using it as a force shaping tool…like the PFA. ? Maybe some more command spots will open up, and promotion rates will skyrocket? ?
They are definitely using it as force shaping to ensure all military are fully vax compliant, and not anti-vaxxers. I am guessing there will be some noncompliance due to how politicized this issue has become. It’s not dissimilar from the recent legislation seeking to remove extremists from the military.
Not really new for Congress/Cabinet Secretary to try to obtain a political result by imposing military rules, though. The history of our country mirrors the makeup of our military, and it’s almost always been modified for the better.