In July 1936, he supported the 17–18 July "coup d’etat" and helped conquer Vitoria, the capital city of the province of Alava for the rebels. In December 1936, he led the defense of the town of Villareal against an offensive of the Basque forces. In March 1937 he was appointed as commander of the 4th Brigade of the newly organized Mola’s Navarrese division and, he led this brigade in the Biscay Campaign, in the Battle of Brunete in July 1937, in the Battle of Santander in August, and in the Aragon Offensive, and on April 15 he took the town of Vinaròs (in the province of Castellón) cut in a half the Republican held zone. Later, he led a division in the Battle of the Ebro.