face prison time, their status as conscientious objectors permitted them to refuse to take part in battle using weapons, and the military was forced to find a different use for them. Often, these men were assigned various tasks close to battle such as medical duties, though some were assigned various civilian jobs including farming, forestry, hospital work and mining. Conscientious objectors were often viewed by soldiers as cowards and liars, and they were sometimes accused of shirking military duty out of fear rather than as the result of conscience. In Great Britain during World War II, the majority of the public did not approve of moral objection by soldiers but supported their right to abstain from direct combat. On the more extreme sides of public opinion were those who fully supported the objectors and those who believed they should be executed as traitors. The World War II objectors were often scorned as fascist sympathizers and traitors, though many of them cited the influence of World War I and their shell shocked fathers as major reasons for refusing to participate. Later 20th century Baptist minister Martin Luther King Jr. led a civil rights movement in the U.S., employing Gandhian nonviolent resistance to repeal laws enforcing racial segregation and to work for integration of schools, businesses and government. In 1957, his wife Coretta Scott King, along with Albert Schweitzer, Benjamin Spock and others, formed the Committee for a Sane Nuclear Policy (now Peace Action) to resist the nuclear arms race. In 1958 British activists formed the Campaign for Nuclear Disarmament with Bertrand Russell as its president. In 1960, Thich Nhat Hanh came to the U.S. to study comparative religion at Princeton University and was subsequently appointed a lecturer in Buddhism at Columbia University. Nhất Hạnh had written a letter to King in 1965 entitled "Searching for the Enemy of Man" and met with King in 1966 to urge him to publicly denounce the Vietnam War. In a famous 1967 speech at Riverside Church in New York City, King publicly questioned the U.S. involvement in Vietnam for the first time. Other examples from this period include the 1986 People Power Revolution in the Philippines led by Corazon Aquino and the 1989 Tiananmen Square protests, with the broadly publicized "Tank Man" incident as its indelible image. On December 1, 1948, President José Figueres Ferrer of Costa Rica abolished the Costa Rican military. In 1949,