 Produced by the White Motor Company , the vehicle was simply a 75 mm Pack Howitzer <unk> mounted on a modified M3 Half @-@ track . It was first used in combat in the North African Campaign in November 1942 . It later served in Italy and France , and possibly in the Pacific . Some were later leased to French forces and the type was used as late as the First Indochina War in the 1950s . 
