Even before the jeep went into standardized production in 1941, the prototypes were tested as litter carriers. Throughout its history the jeep has been effectively used to evacuate casualties from the front or to move within base or field hospital areas when ambulance trucks were not available. While there was no special production jeeps for this use in the Willys MB or Ford GPW line, the jeep was frequently used this way in World War II and in Korea. Thereafter, newer models of the jeep (M38A1 and M151) did have special ambulance configurations. In Korea, and more so in Vietnam, helicopters took over much of the front-line evacuation vehicle role.
Casualties from New Guinea are carried by jeep to a base in Australia, World War II.