The Apache–Mexico Wars, or the Mexican Apache Wars, refer to the conflicts between Spanish or Mexican forces and the Apache peoples. The wars began in the 1600s with the arrival of Spanish colonists in present-day New Mexico. War between the Mexicans and the Apache was especially intense from 1831 into the 1850s. Thereafter, Mexican operations against the Apache coincided with the Apache Wars of the United States, such as during the Victorio Campaign. Mexico continued to operate against hostile Apache bands as late as 1915. For other conflicts involving the Apache see Apache War (disambiguation).