During the rapprochement of the fascists in the vicinity of Madrid, the people of Madrid turned to the defense, some new forces were also created and they were used to plug holes in all the useful forces, the 66 mixed brigade that was in training and the they form some components of the fifth regiment and the steel column, they will fight in this battle. The head of the Madrid Defense Board was created to defend the capital at all costs after the transfer of the Republican government from Madrid to Valencia. In this capacity I have fought to win their new chevrons in coordination of an effective defense plan for the city that prevented its fall designed by Vicente Rojo. Afterwards, his fame as defender increased. As head of the 66 mixed brigade integrated in the center's army, I have demonstrated outstanding performance to carry out the orders in the main operations developed by the mentioned army, in the battles of Jarama and Guadalajara.