When the Mexican government moved away from a new local-level federalist political ideology to create a centralist authoritarian government under Santa Anna, Martín Perfecto de Cos became military commander of the Mexican state of Coahuila y Tejas in 1833. He initially was headquartered in Saltillo. San Antonio had always governed its own affairs and its citizens, increasingly ethnic Anglo-Americans with closer ties to the emerging United States, resented Cos being given power over them. As tensions between Mexico City and Mexican Texas increased, Cos headed north to put down the rebellion.