The opening scene was filmed in Wheeler Gulch, on at the time Wheeler Air Force Base, on the island of Oahu right beside Schofield Barracks. 3/22 Infantry as well as other units were used as extras, brought in from Schofield for the day.
Jim Beaver, who wrote this episode (and who later became well-known as an actor in such shows as "Deadwood," "Justified," and "Supernatural") served as a radioman with the 1st Marine Division in Vietnam.
Opening blurb: Although often called upon to perform in hostile battle zones, all USO entertainers worked on a voluntary basis.