Government & Politics Yearly Ritual Focused On Foster Care Helping Native Families Heal In Iowa War Eagle, a Yankton Sioux chief in the 1830s, was a friend to the white man. Specifically, to the fur trappers who traded with the Yankton Sioux, Santee Sioux, Winnebago By Christie J. Renick/Fostering Media Connections / 15 May 2019