The 83rd Mixed Brigade was a unit of the Spanish Republican Army created during the Spanish Civil War from the militarization of the Iron Column. It came to operate on the Teruel, Levante and Central fronts. History Front of Teruel The unit was created in March 1937, on the Teruel front, from the militarization of the Iron Column. The 83rd MB was integrated into the 41st Division, along with other recently militarized forces. Joaquín García-Morato Ruiz was appointed as head of the brigade. It went on to publish its own newspaper, the "Columna de Hierro", printed in Vinaroz. In July the 83rd MB was sent to the Albarracín sector as reinforcement against the nationalist counteroffensive that followed the Battle of Albarracín. After its arrival in the area, it came to replace the Republican 42nd Division, which was left very broken after the nationalist attacks. At the beginning of August, the brigade was placed in the 64th Division of the 19th Army Corps. During the following days it had to resist the enemy counterattacks, which began on August 4 and lasted until August 21, managing to maintain its positions. At the end of 1937 the unit, which was still attached to the 64th Division, participated in the Battle of Teruel. On December 16, it participated in the capture of , subsequently remaining as a support unit. On December 30 the nationalists launched a counteroffensive that sought to lift the siege of Teruel, attacking in the Campillo sector. The 81st Mixed Brigade fell back under enemy pressure, losing Campilo and causing a breach in the front that would also drag the 83rd MB into its retreat. After the republican conquest of the Teruel capital, the unit was located on the left flank of the front, where it saw no outstanding activity. Fighting in Levante At the end of the military operations in Teruel, the 83rd MB was again added to the 41st Division. In mid-April 1938, after the republican zone was cut in two, the unit was added to the Extremadura Division and destined for the coastal sector; attacked by the forces of Rafael García Valiño, the 83rd MB suffered severe attrition and on May 11 it had to be relieved by elements of the 14th Division. The following day the brigade fought in the Albocàsser-Les Coves de Vinromà sector. In the La Iglesuela del Cid sector, the unit suffered severe damage