On 26 November 1936 the Third Mixed Brigade was sent to the Ciudad Universitaria frontline. and on 29 November it was able to repel an attack in the Pozuelo sector, where it suffered numerous casualties, including its commander José María Galán, who was wounded in the combats and had to be replaced by "Carabineros" Captain Emeterio Jarillo Orgaz, who had been Lieutenant at the "6th Comandancia" in Alicante Province at the time of the 1936 coup of the pro-Fascist generals.