 An armoured auto detachment (otryad) was also instituted.By 1921 the establishment of the rifle division had changed substantially in accordance with TO&E N 1400/246 for peace-time, with two brigades and only 15,876 personnel, and the reduction of artillery to two battalions and one battery, and the cavalry from four to three squadron regiment.From 10 June 1922 the organisation of rifle divisions war changed from brigade to regiment structure, with three regiments in each.