Valdez became Captain-General. Valdez had many reasons for being grateful to Lopez, for during the war which followed between the forces of the queen and those of Carlos, at one crisis--a surprise attack when the troops were about to flee--Lopez placed himself in command and led them to victory. On another occasion Valdez, who had his headquarters in the little village of Durango, had dispatched the main portion of his army against the forces of the enemy, retaining with him only a few picked men. Suddenly he found himself almost surrounded by the Carlists, who had seized the hills by which the village was enclosed. It was necessary that someone carry news of the situation to the main army and obtain relief. Lopez, who was then a colonel, signified his willingness to undertake the task, and indeed claimed that it was his right as first aide-de-camp to command the rescuing party which he intended to bring back with him. Valdez was loath to let him go, for he felt that success was problematic, and that the expedition meant almost certain death for his friend. But there was no alternative, and so at last he consented. Lopez set forth on horseback with one servant attending him. When they approached the enemy, they signalled that they were deserters, with valuable information to impart. They were allowed to approach without being fired on, and when they came abreast of the opposing forces, they set spurs to their horses, ran the gauntlet of a shower of bullets, and escaped unhurt, bearing the news of Valdez's perilous position to his main army. So great was Lopez's valor and fearlessness, and so high a reputation had he for honor and fair dealing, that he was respected by the Carlists as well as by his own party. At the end of this struggle he was accorded the rank of General in the Spanish army, and was loaded with honors, having the crosses of Isabella Catolica and St. Hermengilda bestowed upon him, and being appointed commander in chief of the National Guard of Spain. He stood high in the regard of the Queen Regent, but he grew to know her as she was, a cold, selfish plotter, and when she was finally expelled from the regency Lopez regarded it as a cause for rejoicing, even though his own career might be expected to suffer. But the regard in which he was held was too great for this to come to pass, and after the insurrection which deposed Maria Cristina he was offered and accepted the post of Governor of Madrid.