High Quality Content by WIKIPEDIA articles! The Comanche-Mexican Wars, refers to conflicts from 1821 to about 1870 which consisted of large-scale raids into northern Mexico by Comanches and their Kiowa allies which left thousands of people dead. The Comanche raids were sparked by the declining military and military capability of Mexico in the turbulent years after it gained independence in 1821, plus the growing market in the United States for stolen Mexican horses and cattle.