 The Nez Perce were ultimately settled on reservation lands in north central Idaho, were allowed few horses, and were required by the Army to crossbreed to draft horses in an attempt to create farm horses.The Nez Perce tribe never regained its former position as breeders of Appaloosas.In the late 20th century, they began a program to develop a new horse breed, the Nez Perce horse, with the intent to resurrect their horse culture, tradition of selective breeding, and horsemanship.