Anarcho-pacifism (also pacifist anarchism or anarchist pacifism) is a tendency within anarchism that rejects the use of violence in the struggle for social change and the abolition of the state. The main early influences were the thought of Henry David Thoreau and Leo Tolstoy while later the ideas of Mahatma Gandhi gained importance. Pacifist anarchism "appeared mostly in the Netherlands, Britain, and the United States, before and after the Second World War and has continued since then in the deep in the anarchist involvement in the protests against nuclear armament.".
Henry David Thoreau (1817–1862) was an important early influence in individualist anarchist thought in the United States and Europe. Thoreau's essay "Civil Disobedience" (Resistance to Civil Government) was named as an influence by Mohandas Gandhi, Martin Luther King, Jr., Martin Buber and Leo Tolstoy due to its advocacy of nonviolent resistance. According to the Peace Pledge Union of Britain, it was also the main precedent for anarcho-pacifism. Thoreau himself did not subscribe to pacifism, and did not reject the use of armed revolt. He demonstrated this with his unqualified support for John Brown and other violent abolitionists, writing of Brown that "The question is not about the weapon, but the spirit in which you use it."
In the 1840s, the American abolitionist and advocate of nonresistance Henry Clarke Wright and his English follower Joseph Barker rejected the idea of governments and advocated a form of pacifist individualist anarchism. At some point anarcho-pacifism had as its main proponent Christian anarchism. The Tolstoyan movement in Russia was the first large-scale anarcho-pacifist movement.