 Walzer’s case for Combatant Equality rests on showing that just combatants lose their rights to life. His critics have shown that his arguments to this end fail. So Combatant Equality is false. But they have shown more than this. Inspired by Walzer to look at the conditions under which we lose our rights to life, his critics have made theoretical advances that place other central tenets of jus in bello in jeopardy. They argued, contra Walzer, that posing a threat is not sufficient for liability to be killed (McMahan 1994, 2009). But they also showed that posing the threat oneself is not necessary for liability either. This is more controversial, but revisionists have long argued that liability is grounded, in war as elsewhere, in one’s responsibility for contributing to a wrongful threat. The US president, for example, is responsible for a drone strike she orders, even though she does not fire the weapon herself.