Martin Luther King Jr. was a prominent leader of the anti-war movement during the Vietnam War. He spoke out against the war and organized protests and demonstrations.

Abbie Hoffman was an anti-war activist who was known for his "flower power" philosophy. He advocated for nonviolent protest and the use of art and music to promote peace.

A.J. Muste was the leader of the American Friends Service Committee, a Quaker organization that provided humanitarian aid during the Vietnam War.

Tom Hayden was a co-founder of the Students for a Democratic Society (SDS), an anti-war organization that played a major role in the anti-war movement during the Vietnam War.

Mark Twain was a prominent anti-war activist and poet who wrote the poem "The War Prayer", which satirized the glorification of war.

Jan Scruggs was a co-founder of the Vietnam Veterans Against the War (VVAW), an organization of Vietnam War veterans who opposed the war.

Daniel Ellsberg was a prominent anti-war activist and author who wrote the book "The Pentagon Papers", which revealed the secret history of the Vietnam War.

Bayard Rustin was a co-founder of the Committee for Nonviolent Action (CNVA), an organization that promoted nonviolent resistance to war and injustice.

David Halberstam was a prominent anti-war activist and journalist who wrote the book "The Best and the Brightest", which criticized the decision-making of the U.S. government during the Vietnam War.

Norman Thomas was a co-founder of the War Resisters League (WRL), an organization that promotes nonviolent resistance to war and militarism.

Howard Zinn was a prominent anti-war activist and author who wrote the book "The Politics of Truth", which criticized the U.S. government's foreign policy.

David Dellinger was a co-founder of the National Mobilization Committee to End the War in Vietnam (MOBE), an organization that coordinated anti-war protests and demonstrations.

C. Wright Mills was a prominent anti-war activist and author who wrote the book "The Power Elite", which analyzed the concentration of power in the hands of a small group of elites.

Roger Baldwin was a co-founder of the American Civil Liberties Union (ACLU), an organization that defends civil liberties and opposes government overreach.

Francis Fukuyama was a prominent anti-war activist and author who wrote the book "The End of History and the Last Man", which argued that the end of the Cold War marked the end of history as a struggle between competing ideologies.