Well, to be fair, even in the early to mid 1970s when I was in the Rangers, we weren’t allowed to carry weapons on post unless as a unit ‘Under Arms’, or as a detailed Prisoner Guard or Payroll Guard.”. I can’t remember if Gate Guards were armed then, never having had that duty. Only MP’s were allowed to “carry” as a regular thing.
So that isn’t some 0bama Rule or Bush Rule
Fort Hood restrictions on personal weapons were expanded in 2009 and again in 2012.
On a USN nuclear submarine in 1974 our topside watch had a duty belt with a 1911 holstered on the belt and two loaded clips. The pistol wasn’t loaded. If a threat occurred he had to insert the clip and rack in a round. I have a story of something that happened to cause a watch stander to load a pistol over an altercation. It’s a long story involving a drunk shipmate, shore patrol and a repel boarders drill. Point they weren’t carrying a loaded weapon.