I was the Engineering Officer on the USS Holmes County, LST 836. My main experience with the USO was a USO Club in Danang, Vietnam, 1965 -1966. We enjoyed going to the USO Club there when we were able to. I’ll never forget the sign at the door, “Please leave your side arms at the door”. We were there at Christmas 1965, and you had Bob Hope give a show then, near Danang. I couldn’t go because I had the “duty” on the ship, but many of our crew were able to go and they had a great time. On Christmas Day, we had a ship’s barbecue on the shore and were each allotted 2, yes 2 beers! While I never used them in person, I noticed many times the USO facilities in various airports I passed through.