The Iowa chief White Cloud.
The Iowa or Ioway, known as the Bahocha in their own language, were a Siouan Indian tribe inhabiting the land west of the Mississippi River in what is now the northern part of Southern Vandalia. In the early eighteenth century, the Iowa became alarmed at the steady arrival of white settlers to the Confederation of Indiana. The Shawnee war chief Tecumseh and his brother Tenskwatana, the Shawnee Prophet, convinced the Iowa to join his Indian confederacy. The Iowa remained allied with the native tribes of Indiana until the outbreak of the Rocky Mountain War in 1845, when most of the members of the Indian confederacy crossed over into the United States of Mexico and served as auxiliaries to the Mexican Army. After the war ended in 1855, the Iowa settled permanently in the Mexican states of Arizona and Mexico del Norte.