Guerrero Battalion Flag
 Mexican tricolor  inscribed with the words "Pe. Battalon Guerrero."  "Pe." stands for  Permanente, signifying a standing or regular army.  The unit that would become the Guerrero Battalion was formed in 1823 as part of the Republic of Mexico's national army.  In 1833,  the unit was named for the Mexican revolutionary hero Vincente Guerrero.  The Guerrero Battalion was part of Santa Anna's army when he invaded Texas in 1836.  At San Jacinto, Houston's army wrecked the Guerrero Battalion, seized its flag, and killed most of its men.