Together the troops advanced to San Antonio, where they seized the Alamo on March 6, 1836, after a thirteen-day siege.
On March 11, Sesma was ordered to go with Gen. Adrián Woll to San Felipe de Austin and then to Anahuac.
On March 24, his orders were changed, and he was instructed to support the left wing of José de Urrea's forces, but the resistance encountered at Beeson's Ford on the Colorado River caused Sesma and Woll to camp on the south bank of the river about two miles from the Texas forces on the opposite side.
He began crossing his troops over the Brazos River at Thompson's Ferry on April 13 with orders to continue toward Harrisburg.
At the time of the Battle of San Jacinto, Sesma was encamped on the right bank of the Brazos near the Old Fort settlement.