Anarchists have never shied from internecine quarrels. But none tops the level of discord triggered by World War I, and anarchists’ positions on it. We’ve compiled as much of the (printed) debate as we could find so we can all handily see the depth of the disagreement that shattered relationships. Features essays by Peter Kropotkin, Thomas Keell, Alexander Berkman, Luigi Fabbri, Alexandre Ghé, Errico Malatesta, Robert Selkirk, Joseph Leguépin, and Auguste Bertrand.