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Nigel Cliff, Holy War: How Vasco da Gama's Epic Voyages Turned the Tide in a Centuries-Old Clash of Civilizations, HarperCollins, , 2011.

Roger Crowley, 1453: The Holy War for Constantinople and the Clash of Islam and the West, Hyperion, , 2013.

Reuven Firestone, Holy War in Judaism: The Fall and Rise of a Controversial Idea, Oxford University Press, , 2012.

Sohail H. Hashmi, Just Wars, Holy Wars, and Jihads: Christian, Jewish, and Muslim Encounters and Exchanges, Oxford University Press, , 2012.

James Turner Johnson, The Holy War Idea in Western and Islamic Traditions, Pennsylvania State University Press, , 1997.

Dianne Kirby, Religion and the Cold War, Palgrave Macmillan,  (2013 reprint)

Steven Merritt Miner, Stalin's Holy War: Religion, Nationalism, and Alliance Politics, 1941-1945, Univ of North Carolina Press, , 2003.

Christian Mühling: Die europäische Debatte über den Religionskrieg (1679-1714). Konfessionelle Memoria und internationale Politik im Zeitalter Ludwigs XIV. (Veröffentlichungen des Instituts für Europäische Geschichte Mainz, 250) Göttingen, Vandenhoeck&Ruprecht, , 2018.

David S. New, Holy War: The Rise of Militant Christian, Jewish and Islamic Fundamentalism, McFarland, , 2013.

Vivek Swaroop Sharma, "What Makes a Conflict 'Religious'? in The National Interest 154 March/April 2018, 46-55. Full text available at: http://nationalinterest.org/feature/what-makes-conflict-religious-24576.