as a voluntary formation, without ranks or insignia. Democratic elections selected the officers. However, a decree of 29 May 1918 imposed obligatory military service for men of ages 18 to 40. To service the massive draft, the Bolsheviks formed regional military commissariats (voyennyy komissariat, abbr. voyenkomat), which as of 2006 still exist in Russia in this function and under this name. Military commissariats, however, should not be confused with the institution of military political commissars. In the mid-1920s the territorial principle of manning the Red Army was introduced. In each region able-bodied men were called up for a limited period of active duty in territorial units, which constituted about half the army's strength, each year, for five years. The first call-up period was for three months, with one month a year thereafter. A regular cadre provided a stable nucleus. By 1925 this system provided 46 of the 77 infantry divisions and one of the eleven cavalry divisions. The remainder consisted of regular officers and enlisted personnel serving two-year terms. The territorial system was finally abolished, with all remaining formations converted to the other cadre divisions, in 1937–1938. Mechanization The Soviet military received ample funding and was innovative in its technology. An American journalist wrote in 1941: Under Stalin's campaign for mechanization, the army formed its first mechanized unit in 1930. The 1st Mechanized Brigade consisted of a tank regiment, a motorized infantry regiment, as well as reconnaissance and artillery battalions. From this humble beginning, the Soviets would go on to create the first operational-level armored formations in history, the 11th and 45th Mechanized Corps, in 1932. These were tank-heavy formations with combat support forces included so they could survive while operating in enemy rear areas without support from a parent front. Impressed by the German campaign of 1940 against France, the Soviet People's Commissariat of Defence (Defence Ministry, Russian abbreviation NKO) ordered the creation of nine mechanized corps on 6 July 1940. Between February and March 1941 the NKO ordered another twenty to be created. All of these formations were larger than those theorized by Tukhachevsky. Even though the Red Army's 29 mechanized corps had an authorized strength of no less than 29,899 tanks by 1941, they proved to be a paper tiger. There were actually only 17,000 tanks available at the time, meaning several of the new mechanized corps were badly under strength. The pressure placed on factories and