'Another World? East Africa, Decolonisation, and the Global History of the Mid-Twentieth Century,' Journal of African History, 62, 3 (2021), 394-410. [co-authored with Ismay Milford, Emma Hunter & Gerard McCann], (open access).

'Unwanted Friends: Loyalty and Citizenship in Britain's Imperial Wars, 1899-1960,' in Gareth Curless & Martin Thomas (eds), The Oxford Handbook of Colonial Insurgencies and Counter-Insurgencies (Oxford University Press, Oxford: 2023).

'Public Letters and the Culture of Politics in Kenya, c.1960-75,' Journal of Eastern African Studies, 15, 2 (2021), 339-57 (full online version and open access pre-proof version).

'Political Traffic: Kenyan Students in Eastern and Central Europe, 1958-1969,' Journal of Contemporary History, 53, 4 (2018), 811-31 (full online version and open access pre-proof version).

Allies at the End of Empire: Loyalists, Nationalists and the Cold War, 1945-76 (Routledge, London: 2017) [co-edited with David Anderson].

'Allies at the End of Empire: Loyalists, Nationalists and the Cold War, 1945-76,' International History Review, 39, 1 (2017), [co-authored with David Anderson].

'Violence, Decolonisation and the Cold War in Kenya's North-Eastern Province, 1963-78,' Journal of Eastern African Studies, 8, 4 (2014), 642-57.

'Pharma in Africa: Health, Corruption and Contemporary Kenya in The Constant Gardener,' in Nigel Eltringham (ed.), Framing Africa: Portrayals of a Continent in Contemporary Mainstream Cinema (Berghahn, New York & Oxford: 2013).

'Revisiting Counterinsurgency,' Politics and Society, 38, 1 (2010), 3-14 [co-authored with Elisabeth Jean Wood].

'Footprints in the Sand: British Colonial Counterinsurgency and the War in Iraq,' Politics and Society, 38, 1 (2010), 15-34.

‘Introduction’ and ‘Conclusion’ [co-authored with Nic Cheeseman] in Daniel Branch, Nic Cheeseman & Leigh Gardner (eds), Our Turn to Eat: Politics Since 1950 (Lit Verlag, Berlin: 2010).

'The Search for the Remains of Dedan Kimathi: The Politics of Death and Memorialization in Post-Colonial Kenya,' Past and Present, 206, supplement 5 'Relics and Remains' (2010), 301-20.

'Democratization, Sequencing and State Failure in Africa: Lessons from Kenya' [co-authored with Nic Cheeseman], African Affairs, 108, 430 (2009), pp.1-26.

'Violence and Counter-Insurgency in Cyprus, 1955-59: A Comparative Perspective,' in Vassilis Gounaris, Stathis Kalyvas & Yannis Stefanidis (eds), Ανορθόδοξοι πόλεμοι. Μακεδονία, Εμϕύλιος, Κύπρος [Irregular Wars: Macedonia, Civil War, Cyprus] (Patakis, Athens: 2009).

‘The Politics of Control in Kenya: Understanding the Bureaucratic-Executive State, 1952-78’ [co-authored with Nic Cheeseman], Review of African Political Economy, 33, 107 (2006), pp.11-31.

‘The Enemy Within: Loyalists and the War Against Mau Mau’, Journal of African History, 48, 2 (2007), pp.291-315.

‘Loyalists, Mau Mau, and Elections: The First Triumph of the System, 1957-58’, Africa Today, 53, 2 (2006), pp.27-50.

'Using Opinion Polls to Evaluate Kenyan Politics, March 2004-January 2005’ [co-authored with Nic Cheeseman], African Affairs, 104, 415 (2005), pp.325-36.

‘Imprisonment and Colonialism in Kenya, c.1930-1952: Escaping the Carceral Archipelago’, International Journal of African Historical Studies, 38, 2 (2005), pp.239-65.