We have MARINES.
Been years since I have on a Navy Base, but the last time I was the gates were manned by civilian police AKA “rent-a-cops”.
The Marines did man the gates, at one time, and still have an on base security force but, unless it has changed, they don’t man the gates nor have routine security duties.
When the threat level goes up, the Marines come out to play.
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)