Patrick J. Houlihan is Associate Professor in History. Before taking up his position at Trinity, he was a Research Fellow at the University of Oxford. His book, Catholicism and the Great War: Religion and Everyday Life in Germany and Austria-Hungary, 1914-1922 (Cambridge University Press, 2015), was awarded the Fraenkel Prize of the Wiener Library for the Study of the Holocaust and Genocide. He earned his PhD in History from the University of Chicago, where he trained in modern transnational European and Global History, particularly Germany, Austria-Hungary (and the successor states), and the Vatican. A former visiting fellow at the British School at Rome, his research funding also has included grants from the European Academy of Religion, the Arts and Humanities Research Council (UK), the American Philosophical Society, the Cushwa Center (University of Notre Dame), and the Fulbright Program. His research interests include war and ideology in European and Global History from the American Revolution to the present. His most recent book is Religious Humanitarianism during the World Wars, 1914-1945: Between Atheism and Messianism (Cambridge University Press, 2024). Patrick is a consulting professor for the group, The Global Pontificate of Pius XII: Catholicism in a Divided World, 1945-1958, which is exploring the newly opened Vatican archives of Pope Pius XII (1939-1958)