[1] It was under the command of Humberto Gil Cabrera, with Manuel Tió Vila as chief of staff and with Luis Deltell Bernal as commissar.

Some elements of the 140th Mixed Brigade participated in the defense of Lleida, but after the fall of the city they crossed the river and withdrew towards Llardecans.

On October 15 it had to withstand a strong enemy onslaught, although it maintained its positions at the cost of some casualties — notably the death of the chief of the 560th battalion, Vicente Sagarduy.

Three days later, due to the withdrawal of the 226th Mixed Brigade, it suffered a new enemy encirclement that caused heavy losses to the unit; severely broken, on the November 13 it crossed the Ebro through the Flix area.

By January 13, 1939 it was defending the Sierra de Prades, but after the fall of Tarragona it withdrew towards the French border.