Acknowledgements
I am grateful to the authors who contributed to this volume and to the Editor, Richard Bellamy, for making this publication possible. I would also like to thank all colleagues who provided anonymous peer reviews for the articles; and Thomas Schramme for support and advice. Earlier versions of four of the articles – those by Wall, Weinstock, Rossi and Wendt – were presented at the conference ‘Peace or Justice’ that I organized at the University of Hamburg in July 2011. Thanks are due to all speakers at this conference as well as the Gesellschaft für Analytische Philosophie, the Hamburgische Wissenschaftliche Stiftung and the Department of Philosophy at the University of Hamburg for their financial support.