Pacifism is the opposition or resistance to war, militarism (including conscription and mandatory military service) or violence. The word pacifism was coined by the French peace campaigner Émile Arnaud and adopted by other peace activists at the tenth Universal Peace Congress in Glasgow in 1901. A related term is ahimsa (to do no harm), which is a core philosophy in Indian religions such as Hinduism, Buddhism, and Jainism. While modern connotations are recent, having been explicated since the 19th century, ancient references abound.
In modern times, interest was revived by Leo Tolstoy in his late works, particularly in The Kingdom of God Is Within You. Mahatma Gandhi propounded the practice of steadfast nonviolent opposition which he called "satyagraha", instrumental in its role in the Indian Independence Movement. Its effectiveness served as inspiration to Martin Luther King Jr., James Lawson, Mary and Charles Beard, James Bevel, Thich Nhat Hanh, and many others in the civil rights movement.
Pacifism covers a spectrum of views, including the belief that international disputes can and should be peacefully resolved, calls for the abolition of the institutions of the military and war, opposition to any organization of society through governmental force (anarchist or libertarian pacifism), rejection of the use of physical violence to obtain political, economic or social goals, the obliteration of force, and opposition to violence under any circumstance, even defence of self and others. Historians of pacifism Peter Brock and Thomas Paul Socknat define pacifism "in the sense generally accepted in English-speaking areas" as "an unconditional rejection of all forms of warfare". Philosopher Jenny Teichman defines the main form of pacifism as "anti-warism", the rejection of all forms of warfare. Teichman's beliefs have been summarized by Brian Orend as "... A pacifist rejects war and believes there are no moral grounds which can justify resorting to war. War, for the pacifist, is always wrong.