It was a far harder task, however, to overcome the jealousy and incompetence of Torres, then in chief command; and Mina, betrayed by his allies, fell into the hands of Viceroy Apodaca, who had him immediately executed, with twenty-five of his followers, on November 11, 1817. Mina was but twenty-eight years old when he ended his career, but he had given proofs of rare worth as a soldier and a patriot. Among the Americans who shared his fortunes was Colonel Perry, of New Orleans. Despairing of success, as soon as he discovered the worthlessness of the native leaders, he abruptly withdrew from the army and undertook, with only fifty followers, to cut his way back to the United States by land. In this attempt they partially succeeded, but were soon overtaken and surrounded by an overwhelming force. Perry rejected all demands to surrender until, the last of his band having fallen by his side, he put a pistol to his head and blew out his brains. When Mexico at last won her freedom, her most northerly state, Texas, held an anomalous position. A large proportion of its people was made up of Americans who had borne their share in the battle for liberty. By birth and associations they were more closely allied with their Northern than with their Southern neighbours. It did not take them long to learn that Mexico, in changing her government had not changed her nature. The intolerance of the new rulers differed little from that of the old, while civil government was far less stable under the Republic than it had been while swayed by the Spaniard. Upon the declaration of Texan independence in September, 1835, General Cos marched a large army into the rebellious state, determined to drive the rash intruders out of the country. In the first engagement, at Gonzales, the Texans routed their foes, and General Cos was forced to take refuge behind the walls of the Alamo, in San Antonio de Bexar. But the Texan blood was now fairly up, and General Burlison, with only 216 men, laid siege to the fortress. The garrison numbered 1,700, but in spite of the fearful odds, the Texans stormed the place and sent General Cos under parole to his astonished brother-in-law, the redoubtable Santa Ana. Colonel James Bowie, who had just defeated another large Mexican force, at the Mission Concepcion, joined Colonel Travis at the Alamo.