Chapter 7 is open access and available under the terms of a CC BY-NC-ND 4.0 International licence. It is free to read at Oxford Scholarship Online and offered as a free PDF download from OUP and selected open access locations.This is the twelfth volume of Oxford Studies in Political Philosophy. Since its revival in the 1970s, political philosophy has been a vibrant field in philosophy, one that intersects with jurisprudence, normative economics, political theory in political science departments, and just war theory. OSPP aims to publish some of the best contemporary work in political philosophy and these closely related subfields. This volume of Oxford Studies in Political Philosophy presents papers celebrating the career of distinguished political philosopher Richard Arneson.