Some three hundred and eight Texan soldiers, who had ignored orders to pull back from the Rio Grande to Gonzales, approach Ciudad Mier.

They camp on the Texas side of the Rio Grande.

Seven hundred soldiers participate in the capture of the town, while the others remain behind as the camp guard.

The Texans are unaware that  three thousand Mexican troops are in the area under the command of generals Francisco Mexia and Pedro de Ampudia.

In the Battle of Mier that results, the Texians are outnumbered ten to one.

They inflict heavy casualties on the Mexicans—six hundred and fifty dead and two hundred wounded—but they are forced to surrender on December 26.

The Mexicans took 243 Texans as prisoner and marched them toward Mexico City via Matamoros, Tamaulipas, and Monterrey, Nuevo León