The Battle of Rush Creek took place February 8–9, 1865, between about 185 soldiers of the U.S. Army and 1,000 warriors of the Lakota Sioux, Cheyenne, and Arapaho tribes. It was part of a series of retaliations by the Native American alliance after the U.S. army committed the Sand Creek Massacre. The inconclusive battle took place 4 mi southeast of present-day Broadwater, Nebraska, along both banks of the North Platte River.

The Cheyenne are an Indigenous people of the Great Plains. Their Cheyenne language belongs to the Algonquian language family. Today, the Cheyenne people are split into two federally recognized nations: the Southern Cheyenne, who are enrolled in the Cheyenne and Arapaho Tribes in Oklahoma, and the Northern Cheyenne, who are enrolled in the Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation in Montana.