The Apache Wars were a series of armed conflicts between the United States Army and various Apache tribal confederations fought in the southwest between 1849 and 1886, though minor hostilities continued until as late as 1924. After the Mexican–American War in 1846, the United States annexed conflicted territory from Mexico which was the home of both settlers and Apache tribes. Conflicts continued as white colonizers came into traditional Apache lands to raise livestock and crops and to mine minerals.

The Apache are several Southern Athabaskan language–speaking peoples of the Southwest, the Southern Plains and Northern Mexico. They are linguistically related to the Navajo. They migrated from the Athabascan homelands in the north into the Southwest between 1000 and 1500 CE.