Geronimo, Apache warrior, surrenders to the U.S. Army, ending the main phase of the Apache Wars.

Gerónimo was a military leader and medicine man from the Bedonkohe band of the Ndendahe Apache people. From 1850 to 1886, Geronimo joined with members of three other Central Apache bands – the Tchihende, the Tsokanende and the Nednhi – to carry out numerous raids, as well as fight against Mexican and U.S. military campaigns in the northern Mexico states of Chihuahua and Sonora and in the southwestern American territories of New Mexico and Arizona.

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.

The United States Army (USA) is the primary land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution. It operates under the authority, direction, and control of the United States secretary of defense. It is one of the six armed forces and one of the eight uniformed services of the United States. The Army is the most senior branch in order of precedence amongst the armed services. It has its roots in the Continental Army, formed on 14 June 1775 to fight against the British for independence during the American Revolutionary War (1775–1783). After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784 to replace the disbanded Continental Army.

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 American settlers came into traditional Apache lands to raise livestock and crops and to mine minerals.