Did a little digging and found this...
Article 2(a)(4) allows for the court-martial of regular component (Army, Navy, Marine, Air Force, Space Force, and Coast Guard) retirees who are entitled to pay, and Article 2(a)(6) allows for the court-martial of retirees who are part of the Fleet Reserve or Fleet Marine Corps Reserve. Moreover, despite their retiree status, these two groups are treated like active-duty members in that they are continuously subject to UCMJ jurisdiction.
More items of interest at the link.
From the same article:
“government contended that Fleet Marine Corps Reservists’ receipt of retainer pay and the ability of the Secretary of the Navy to recall them to active duty at any time necessitated jurisdiction”
Using this the Government could require all Military Retiree active reserve members to be injected with the Covid vaccine.
If a retiree still falls under the UMCJ they can still be given direct orders.
Thank you. It wouldn’t surprise me if. I shouldn’t be shocked. But, I am