Brazoria for the cannons. On June 20, he called the residents together, and they voted to oppose the centralist government. Austin invited Colonel Domingo Ugartechea, who commanded the small Fort Velasco on the Brazos, to join their cause. After Ugartechea refused, on June 26 the Brazoria residents attacked the fort. The action became known as the Battle of Velasco. The next morning, Ugartechea surrendered under an agreement that he and his men would return to Matamoros but leave their artillery behind. When Piedras was within of Anahuac, he sent a delegation to Johnson, who provided him with a list of grievances against Bradburn. Piedras negotiated a resolution of the conflict. Among the measures to which he agreed were: to reestablish the ayuntamiento at Liberty; to release the civilian prisoners at Anahuac to civilian authorities to have Bradburn resign in favor of an officer of his choice. With Texians' acceptance of the terms on June 28, Piedras marched to Anahuac on July 1. Aftermath Bradburn's chosen successor, Lieutenant Colonel Felix Maria Subarán, refused to take his place. Piedras took temporary command of the garrison. On July 2, he released the prisoners to the civilian authorities; within a week they were released with no charges filed. On July 8, Piedras left for Nacogdoches. He gave command of the Anahuac garrison to Lieutenant Cortina, previously the third-in-command. Three days after Piedras left, the bulk of the Anahuac troops declared themselves federalists. The troops were drunk and Cortina, unable to maintain order, asked Bradburn to resume command. Bradburn refused, instead recommending that Subarán take responsibility. After an attempt at his assassination was forestalled, Bradburn decided to leave Texas. None of the local ship captains would give him passage. On July 13, Subarán announced he would not guarantee the safety of any officers who supported the centralist government. That night, Bradburn left Anahuac; a hired guide took him on foot to Louisiana. Other officers sought sanctuary with sympathetic locals. Historians have discussed Bradburn's role. William C. Davis believes that he "overreacted and made heroes of two local malcontents whose actions their own people otherwise had not been much inclined to sanction". The resulting Turtle Bayou Resolutions, however, encouraged other Texians to follow similar courses. Many communities declared support for Santa Anna. When Piedras returned to Nacogdoches, he discovered citizens were forming Texian Militia companies. He asked the local ayuntamiento to order the militias to disband;