In September 1959, King flew from Los Angeles, California, to Tucson, Arizona. After giving a speech at the University of Arizona on the ideals of using nonviolent methods in creating social change. He put into words his belief that one must not use force in this struggle "but match the violence of his opponents with his suffering." King then went to Southside Presbyterian, a predominantly Native American church, and was fascinated by their photos. On the spur of the moment, King wanted to go to an Indian Reservation to meet the people so Reverend Casper Glenn took King to the Papago Indian Reservation. At the reservation King met with all the tribal leaders, and others on the reservation then ate with them. King then visited another Presbyterian church near the reservation, and preached there attracting a Native American crowd. He later returned to Old Pueblo in March 1962 where he preached again to a Native American congregation, and then went on to give another speech at the University of Arizona. King would continue to attract the attention of Native Americans throughout the civil rights movement. During the 1963 March on Washington there was a sizable Native American contingent, including many from South Dakota, and many from the Navajo nation. Native Americans were also active participants in the Poor People's Campaign in 1968.