The Battle of Velasco, fought June 25–26, 1832, was the first true military conflict between Mexico and settlers in Texas. It began when Texan insurgents attacked Fort Velasco, located in what was then Velasco and what is now the present day city of Freeport. The Mexican commander during the conflict, Domingo de Ugartechea, tried to stop the Texians, under John Austin, from transporting a cannon up the Brazos River to attack the city of Anahuac. The Texian militia eventually prevailed over the Mexicans when Ugartechea surrendered after a two day battle, once he realized he would not be receiving reinforcements, and his soldiers had run out of ammunition.