Most of the humor in Beetle Bailey revolves around the inept characters stationed at Camp Swampy (inspired by Camp Crowder, where Walker had once been stationed while in the Army), which is located near the town of Hurleyburg at "Parris Island, S. C. ". Private Bailey is a lazy sort who usually naps and avoids work, and thus is often the subject of verbal and physical chastising from his superior officer, Sergeant Snorkel. The characters never seem to see combat themselves, with the exception of mock battles and combat drills. In fact, they seem to be in their own version of stereotypical comic strip purgatory (initially basic training, they now appear to be stuck in time in a regular infantry division). The uniforms of Beetle Bailey are still the uniforms of the late 1940s to early 1970s Army, with green fatigues and baseball caps as the basic uniform, and the open jeep as the basic military vehicle. Sergeant First Class Snorkel wears a green Class A Army dress uniform with heavily wrinkled garrison cap; the officers wear M1 helmet liners painted with their insignia. Despite this 'anachronism,' modern weapons and equipment do make rare appearances. While Beetle Bailey's unit is Company A, one running gag is that the characters are variously seen in different branches of the Army, such as artillery, armor, infantry and paratroops.