Thesis (Ph.D.)--University of Washington, 2019Within the ethics of self-defense, the predominant view is that there are liability justifications for harming. A minority position, which I call radical pacifism, denies that there are liability justifications for harming. This dissertation offers three separate arguments against the predominant view and for the radical pacifist view. The first paper, “Animal Rights Pacifism,” demonstrates how attentiveness to our moral duties to animals generates counterintuitive moral conclusions that can be most plausibly avoided only by appeal to pacifism. The second paper, “Multiple Threats and the Specter of Pacifism,” shows that anti-pacifism is itself radical, since it entails that there can be unlimite...