Quaker Peace Testimony
“Peace testimony, or testimony against war, is a shorthand description of the action generally taken by members of the Religious Society of Friends (Quakers) for peace and against participation in war. Like other Quaker testimonies, it is not a “belief”, but a description of committed actions, in this case to promote peace, and refrain from and actively oppose participation in war. Quakers’ original refusal to bear arms has been broadened to embrace protests and demonstrations in opposition to government policies of war and confrontations with others who bear arms, whatever the reason, in the support of peace and active nonviolence. Because of this core testimony, the Religious Society of Friends is considered one of the traditional peace churches.”
From Wikipedia.