In 1838 the Army moved back into the old military post near Belle Point, and expanded the base. They used troops to escort Choctaw and Cherokee, from their ancestral homelands in the Southeast; they were the last of the tribes to leave. Remnants of the Five Civilized Tribes remained in the southeast, and their descendants in some cases have reorganized and been federally recognized. The Cherokee called the forced march the Trail of Tears, as many of their people and African-American slaves died along the way. The army enforced the removal of these peoples to the reserved Indian Territory, where the federal government granted them land. Many displaced Native Americans fell out of the march and settled in Fort Smith and adjoining Van Buren, Arkansas on the other side of the river.