Morelos soon showed himself to be a talented strategist, and became one of the greatest revolutionary military commanders of the war. In his first nine months, he won 22 victories, annihilating the armies of three Spanish royalist leaders and dominating almost all of what is now the state of Guerrero. In December, he captured Acapulco for the first time, except for the Fort of San Diego. Spanish reinforcements forced him to raise the siege in January. By quick marches, he was able to capture most of the Spanish possessions on the Pacific coast of what are now Michoacán and Guerrero. On May 24, 1811, he occupied Chilpancingo and on May 26 he took Tixtla.