In August of 1963, for example, she sang “We Shall Overcome” at the March on Washington. For ten years, starting in 1964, Baez withheld 60 percent of her income taxes, the amount used for military purposes, to protest the Vietnam War. She participated in the 1965 march from Selma to Montgomery. In September 1966, she protested with Dr. Martin Luther King, Jr. in Grenada, Mississippi against the beating of African American children by a white mob resisting integration in schools. In December, she performed at the benefit concert for the striking farmworkers in California. She has always supported the UFW performing benefit concerts and union conventions, as well as rallies and picket actions.