In recent decades, revisionist philosophers have radically challenged the orthodox just war theory championed by Michael Walzer in the 1970s. This review considers two new contributions to the debate, Benbaji and Statman’s War by Agreement and Ripstein’s Kant and the Law of War, which aim to defend the traditional war convention against the revisionist attack. The review investigates the two books’ respective contractarian and Kantian foundations for the war convention, their contrast with the revisionist challenge, and their points of disagreement. (...) Building on the responses to Ripstein in the edited collection, The Public Uses of Coercion and Force, and providing an overview of the broader debate, the review offers an analysis of the two books’ positions on the relationship between the morality and laws of war, on just cause and the crime of aggression, and on the equality between just and unjust combatants. (shrink)