The 102nd Infantry Division ("Ozark") was a unit of the United States Army in World War II. The unit is currently active as the 102nd Training Division (Maneuver Support). Interwar period The division was constituted in the Organized Reserve on 24 June 1921, allotted to the Seventh Corps Area, and assigned to the XVII Corps, with Arkansas and Missouri as its home area. The headquarters was organized on 2 September 1921 at 3d and Olive Streets in St. Louis, and relocated in 1923 to the Old Customhouse. The HQ remained there until activated for World War II. To encourage esprit de corps, the division adopted the nickname “Ozark” after the mountainous region that ran through both home area states, and the division staff published a newsletter titled “Ozark.” The division formed rapidly and by November 1922, it was up to 95 percent strength in its complement of officers as required by its peacetime tables of organization. The designated mobilization and training station for the division was Fort Riley, KS. The HQ and staff usually trained at Fort Leavenworth, KS. The subordinate infantry regiments of the division held their summer training primarily with the 17th Infantry Regiment at Fort Leavenworth. In the 1920s and 1930s Harry S. Truman, a lieutenant colonel in the Officers' Reserve Corps, commanded the division's 1st Battalion, 379th Field Artillery Regiment. After promotion to colonel, Truman advanced to command of the 379th Field Artillery Regiment. World War II Ordered into active military service: 15 September 1942 at Camp Maxey, Texas Overseas: 12 September 1944 Campaigns: Rhineland, Central Europe Days of combat: 173 Distinguished Unit Citations: 4 Awards: DSC-8; DSM-1 ; SS-686; LM-15; SM-39 ; BSM-5,498 ; AM-91. Commanders: Major General John B. Anderson (September 1942 – December 1943), Major General Frank A. Keating (8 January 1944 – February 1946), Brigadier General Charles M. Busbee (February 1946 to inactivation). Assistant Division Commanders (partial list): Lloyd D. Brown (May 1942 – February 1943), Alonzo Patrick Fox (April 1943 – May 1945) Returned to U.S.: 11 March 1946. Inactivated: 23 March 1946. Order of battle Headquarters, 102nd Infantry Division 405th Infantry Regiment 406th Infantry Regiment 407th Infantry Regiment Headquarters and Headquarters Battery, 102d Infantry Division Artillery 379th Field Artillery Battalion (105 mm) 380th Field Artillery Battalion (105 mm) 381st Field Artillery Battalion (155 mm) 927th Field Artillery Battalion (105 mm) 327th Engineer Combat Battalion 327th Medical Battalion 102nd Cavalry Reconnaissance