US Naval Bases and Ports

[HorseSoldier]

Anything that has strategic value (nuclear weapons sites, strategic commo sites, key wartime industrial facilities, etc.) are going to have their security heavily augmented once the war kicks off. I'd think a mix of civilian security forces (DOD Police, properly vetted private security companies, local/state law enforcement perhaps as well in some cases) and military, though not necessarily with any sort of strict adherence to branch ownership of facilities. It's possible you'd see soldiers or USAF security units helping garrison ports or other strategic navy facilities.

I think in WW2 they had some sort of separate government agency set up that provided security elements for essential industries. I'm not sure if that would make sense in the T2K timeline as much as the government just contracting out a lot of security to security guard companies. Some of the bigger companies already provided some fairly serious site security alongside the more common mall cop jobs and such, before 9/11 when "security contractor" got a more sexy air to it.