[1] The Third Mixed Brigade is mentioned in the lyrics of Si me quieres escribir,[4] one of the most famous songs of the Spanish Republican troops during the Civil War.

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.

Prior to being sent the brigade was concentrated at Fuencarral and Militia Major Antonio Pérez Quijano became the new commander, replacing Captain Zulueta.

Owing to this failure Major Pérez Quijano was removed from his post and replaced by Carabineros Commander Agustín Colomina Solera.

[1] By 6 April the rebel victory in Aragon had cut the territory of the Spanish Republic in two and the survivors of the much depleted 3rd Mixed Brigade were evacuated for a rest to the Coastal Defence in Catalonia.

Then the 3rd Mixed Brigade steadily retreated towards the international border in the north amidst the general debacle of the Republican military units in Catalonia.

[1] After crossing into France the 3rd Mixed Brigade's members were disarmed and interned in concentration camps by the French authorities and the unit became extinguished.

[8] The Second World War began just a few months after the end of the Spanish conflict, where the Francoist forces aligned with the Axis Powers had been victorious.

However, from the concentration camps in France, such as Argelès-sur-Mer and Le Barcarès some former members of the 3rd Mixed Brigade managed to reach the French Resistance in order to continue the combat against Nazi Germany.

[6] All commanders of the Third Mixed Brigade had been officers of the Carabineros corps, except for Joaquín de Zulueta, Antonio Pérez and Hernando Liñán.