 Nevertheless, the Commandancy General experienced significant changes in its administration because of experimentation to find the best government for the frontier region as well as bureaucratic in-fighting.Its creation was part of the Bourbon Reforms and was part of an effort to invigorate economic and population growth in the region to stave off encroachment on the region by foreign powers.During its existence, the Commandancy General encompassed the Provinces of Sonora y Sinaloa, Nueva Vizcaya, Las Californias, Nuevo México, Nuevo Santander, Nuevo Reyno de León, Coahuila (formerly Nueva Extremadura) and Texas.