To collect or take back the cannon that the Mexican army had loaned to them.
Explanation:
In what was known as the Battle of Gonzalez which occurred on October 2nd, 1835. The Mexican government under the command of Colonel Domingo de Ugartechea, sent Mexican troops to the town of Gonzales outside San Antonio to take back the Cannon weapon that was lent to the residents of Gonzales four years before in 1831.
However, the residents refused to return the weapon, and an open fire ensued. Though Mexican soldiers eventually withdrew after a few hours.
