The Peace Pledge Union (PPU) is a non-governmental organisation that promotes pacifism, based in the United Kingdom. Its members are signatories to the following pledge: "War is a crime against humanity. I renounce war, and am therefore determined not to support any kind of war. I am also determined to work for the removal of all causes of war",[1] and campaign to promote peaceful and nonviolent solutions to conflict.[1] The PPU forms the British section of War Resisters' International.