Two Strike (Numpkahapa, c. 1831–1915) was a Brulé Lakota chief born in the White River Valley in present-day Nebraska.

Buffalo Bill Cody was present at the battle serving in the capacity as chief scout.

Chief Tall Bull of the Southern Cheyenne along with 51 members of the combined Lakota-Cheyenne encampment were killed and 17 women and children were taken prisoner, the rest of the Lakota and Cheyenne managed to escape.

[1] Chief Two Strike was one of the principal chiefs of combined Oglala and Brulé war party of over a thousand braves that attacked a band of Pawnee Indians, old hated enemies that had left their reservation in Nebraska to hunt buffalo on August 5, 1873.

More than 70 to 100 Pawnee were killed in the battle/massacre which occurred in and along a bluff in present-day Hitchcock County, Nebraska near the republican river.