4 On the distinction between ‘critical’ and ‘problem solving’ approaches, see Robert Cox, ‘Social Forces, States and World orders: Beyond International Relations Theory’, in Robert O. Keohane (ed.), Neorealism and Its Critics (New York: Columbia University Press, 1986), pp. 204–54. On the importance of critical analysis in the study of peace operations, see Oliver P. Richmond, ‘Critical Research Agendas for Peace: The Missing Link in the Study of International Relations,’, Alternatives: Global, Local, Political, 32:2 (April–June 2007), pp. 247–74; Alex J. Bellamy and Paul Williams, ‘Conclusion: What Future for Peace Operations? Brahimi and Beyond’, International Peacekeeping, 11:1 (Spring 2004), pp. 183–212; and Roland Paris, ‘Broadening the Study of Peace Operations’, International Studies Review, 2:3 (Fall 2000), pp. 27–44.