From 1939 to 1946, over half a million men went through Camp Claiborne. The camp was mainly used for basic training and artillery practice, which included the nearby Winn District-Kisatchie Precision Bombing Range. It was also home to the Engineering Unit Training Command (EUTC). Special service forces training was also conducted there, including railroad battalion training. The 34th Infantry Division (United States) came to Claiborne for its basic training and would be the first American force sent to the European Theater of Operations (ETO).