I was a hospital corpsman in the Navy. I never left the US during my enlistment (except for some expeditions to Tijuana when I was stationed in San Diego...to buy souvenirs, of course.) I spent the last two years of my enlistment at Cherry Point, NC, being assigned to the Naval Hospital at the MCAS there. I stood duty on the weekends in the ER, and felt like I was in a war zone most of the time. There were about 10,000 Marines there at that time, and about 9,900 of them got into fights on the weekend. The MPs would always bring any injured by the ER to have them checked out before taking them on to the brig.
We stood duty from 1700 on Friday to 0800 on Monday. In theory, we were supposed to be able to sleep sometime in there, but in actuality it wasn't uncommon to be awake the entire time. (We all had regular duty stations...mine was the Eye Clinic, as I had been trained as an optician. I had also been trained as an OR tech.) One weekend, I was on duty and we had been just swamped...I was fighting a nasty cold, was exhausted, and as I headed into a treatment room to sew up a guy who had been in a fight, I guess I passed out. The MPs were posted outside the room, but heard the clatter (I fell into a trash can.) It wasn't unusual for these drunk Marines to be belligerent drunks, and want to fight us, even though we were trying to help them. Apparently the Marine had come over to see what was going on with me...when the MPs opened the door to the room they saw him standing over me, and me on the floor...so, they assumed he had hit me. They worked him over and dragged him on to the brig!
We got it all straightened out later, but I always felt bad for that poor guy. That is my "combat" story from my service.