The vehicles received were organized based on a reorganization of the Brunete Armored Division in 1965. This included the General Staff, based at El Pardo, and the Nucleo de Tropas Divisionario (Divisionary Troop Nucleus). The latter was formed by the Villaviciosa Light Armored Cavalry Regiment, the Campaign Artillery Regiment, the 1st Anti-Air Artillery Group, the 1st Engineering Regiment and the Divisionary Logistics Group. Also in the division was the XI Mechanized Infantry Brigade, which included the 6th Saboya Motorized Infantry Regiment, the 55th Uad Ras Mechanized Infantry Regiment, the XI Self-Propelled Artillery Group, the XI Engineering Battalion and the XI Logistics Group. Finally, the division also made use of the XII Armored Brigade, which was formed by the 61st Alcázar de Toledo Armored Infantry Regiment, the 31st Asturias Mechanized Infantry Regiment, the XII Self-Propelled Artillery Group, the XII Engineering Battalion and the XII Logistics Group.Manrique, La Brunete, pp. 39–42 The majority of the division's armor was located in the Alcázar de Toledo Armored Infantry Regiment, which contained two regiments of 48 M48s and 54 M47s, respectively.Manrique, La Brunete, p. 43
