Depot Division as replacements, except for a record cadre numbering 10 officers and 102 men. The 106th Sanitary Train, which had remained at Brest, relocated to Camp de Souge on 25 November, and thence to the American Embarkation Center at Le Mans in December, where it was skeletonized. On 27 November, the record cadre and 56th Field Artillery Brigade (without the 106th Trench Mortar Battery) moved to Brest, from which they sailed aboard the USS Manchuria between 9 and 10 December. After arriving at Camp Merritt on 20 December, they moved to Camp Gordon on 1 January 1919, where the record cadre and 56th Brigade demobilized on 14 January. Elements of the division remained in France for several months longer, however. The 106th Supply Train relocated to Camp de Souge on 29 November. The 106th Trench Mortar Battery and part of the 106th Sanitary Train sailed on 2 and 15 January, respectively. The 106th Field Signal Battalion departed Bordeaux on 18 April, and the last units of the division overseas, the 106th Engineers and 106th Supply Train, returned to the United States on 5 July. Interwar period Under the National Defense Act of 1920, the 39th Division was allotted to Alabama, Arkansas, Florida, Louisiana, and Mississippi, part of IV Corps, in 1921. On 1 July 1923 it was reorganized, less the Arkansas units, and renamed the 31st Division, following the recommendations of a joint board of Regular and Guard officers, due to its allocation to states which raised the 31st Division in World War I. In August 1924, the division, except for the 124th Infantry, conducted squad and platoon level training at Camp McClellan, its designated mobilization training center, due to its troops being relatively inexperienced. Its headquarters was organized and Federally recognized on 15 October of that year, stationed at St. Augustine, Florida, under the command of Major General Albert H. Blanding of Florida. During the interwar period, the division was organized in accordance with a square organization similar to its World War I structure, although a separate headquarters for Special Troops (Military Police, Signals, Ordnance, and Armor) was created and medical and quartermaster regiments added. During the interwar period, the division did not train together in most years, as separate summer camps were held for the units of each state. Florida units trained at Camp J. Clifford R. Foster, Alabama units at Camp McClellan, Mississippi units at Camp