The Antelope Hills expedition was undertaken in response to escalating violence on the Texas frontier between 1856 and 1858. During this period, American settlers continued to encroach into Comancheria, plowing under valuable hunting grounds and causing the Comanche to lose grazing land for their horse herds. Additionally, the United States had taken measures to block the Comanches' traditional raids into Mexico. In retaliation, the Comanche launched a series of ferocious and bloody raids against settlers. The Army proved unable to stem the violence, hampered by unit transfers and complications involving federal law and treaties, prompting the organization of this campaign by the Texas Rangers and allied Native American tribes.
The expedition campaign ran from January to May 1858, beginning in western Texas and culminating in a series of fights with the Comanche tribe on May 12, 1858, at Antelope Hills by Little Robe Creek, a tributary of the Canadian River in what is now Oklahoma. The hills are also called the "South Canadians" due to their location surrounding the Canadian River. The fighting on May 12, 1858, is often referred to as the Battle of Little Robe Creek.
This engagement represented a significant military response to the cycle of frontier violence that had characterized the preceding years. The campaign brought together the Texas Rangers and members of other allied Native American tribes in a coordinated effort to confront Comanche and Kiowa villages in their territory.
The Mexican-American War (1846–1848) grew from the annexation of Texas (1845) and a disputed border between Texas and Mexico at the Rio Grande. President James K. Polk ordered US troops under General Zachary Taylor into the contested zone; after a skirmish that killed American soldiers, Congress declared war in May 1846. US forces won a series of engagements — Palo Alto, Monterrey, Buena Vista — before General Winfield Scott led an amphibious landing at Veracruz and an overland campaign to Mexico City, which fell in September 1847. The Treaty of Guadalupe Hidalgo (February 1848) transferred California, Nevada, Utah, most of Arizona and New Mexico, and parts of Colorado and Wyoming to the United States in exchange for $15 million and assumption of $3.25 million in claims — roughly 525,000 square miles, a 67 percent expansion of US territory. The war's outcome immediately reopened the slavery question: the Wilmot Proviso, debated throughout the war, proposed banning slavery from any territory acquired from Mexico, foreshadowing the sectional crisis of the 1850s.
comanche killed: 76; ranger killed: 2; ranger wounded: 3
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