We need the Air Force in theatre for their dining facilities.
If we'd end up at a firebase like Hill 55, we'd go through the messhall like army ants, cleaning out the ketchup, Tobasco sauce, jam & jelly, etc.
One trip to the Air Force messhall at DaNang we found it all locked up. We went around back and found a messman sitting on the loading dock.
“Why aren't you open?” we asked.
“Oh, the water is off” he replied. “But that's great, since we get to eat C-rats!” he said with genuine delight.
It was with great effort that we refrained from beating him to a pulp.