On 15 November the Second Mixed Brigade set out by railway towards Madrid. It arrived at Huerta in two separate groups and continued on foot until reaching the area between Ocaña and Noblejas onward to the first line of fire. On 17 November it was sent by General Miaja as a reserve unit at the front of the Ciudad Universitaria where it had to face the feared Regulares African troops.[3] Made up of a machine-gun company and three infantry companies, the 2 mixed brigade covered repeatedly the vanguard of the sector between the southern wall of the Casa de Campo and the Puerta del Ángel. In the Ciudad Universitaria battle the 2nd mixed brigade suffered so many losses that it had to be withdrawn in March 1937 in order to be regrouped.
After the regrouping it became part of the 10th Division of the I Army Corps. From 9 to 14 April the brigade was sent to an attack against the Cerro Garabitas that did not achieve any positive result but caused multiple casualties, among them the death of its commander Jesús Martínez de Aragón. He was replaced by Militia Major José Gallego Pérez, formerly of the Military Engineering Corps, who led one of the battalions. Owing to the many losses the brigade had to be reassembled again.[1]
The 2nd Mixed Brigade took part in the Battle of Brunete, where on 7 July it secured Villanueva del Pardillo, maneuvering between the Aulencia and Guadarrama Rivers. The following day it took part in the storming of the Villafranca Castle, after which it went to relieve troops of the 31st Division in the Villanueva de la Cañada sector.
Following the scant success of the unit at the Battle of Brunete Commander José Gallego was replaced by Militia Major Ignacio Esnaola Iraola and the 2nd Brigade returned to the frontline of the Defence of Madrid in the Monte Panarra sector where it remained, almost without interruption until spring 1938.
Eastern Front
The Francoist Aragon Offensive had devastating effects on the Spanish Republican military for the rebel armies eastward thrust reached the coastal town of Vinaròs and broke the Spanish Republican territory in two. Following these events the 2nd Mixed Brigade was sent to the Eastern Front (Frente de Levante).
Its aim was to cut across the Maestrazgo ranges in order to try to hinder the progress of General Aranda's troops. By 22 April it covered the sector Vilafranca-Cantavieja-La Iglesuela del Cid, where its troops were decimated by the rebels. Following the heavy loss of lives the 2nd Mixed Brigade had suffered in the harsh mountain area, it was unfit for battle action and was sent to a defensive position in the Eastern Front until the end of the year in order to be rebuilt.[1]
Once in the combat area the 2nd Mixed Brigade attacked the rebel armies in Sierra Trapera and in Mocitas-Mataborrachas in the border area between Extremadura and NW Andalusia.[4] In the height of the battle it was sent towards the inner area of the pocket in order to cover the withdrawal of the trapped Republican units. In these combat actions the Second Mixed Brigade had to bear so many losses that its size had to be reduced to two battalions for the second time in its history. Subsequently the brigade was gathered in Santa Eufemia, Andalusia, in order to recover and eventually to be re-established, but by then it was the last month of the war and its final fate is unknown, although it seems that it returned to the Eastern Front.[1][2]
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