| Air Warfare | Mahoney, Ross and Pugh, James | France, Germany, Great Britain, Italy, Russian Empire | Violence |
| Anzac (Australia) | Seal, Graham | Australia | Violence |
| Art (Australia) | Hutchison, Margaret | Australia | Media |
| Australia | Beaumont, Joan | Australia | Home Front, Post-war, Power, Pre-war, Violence |
| Belgium | De Schaepdrijver, Sophie | Belgium | Home Front, Post-war, Power, Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Africa) | Koller, Christian | Africa | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Australia) | Stanley, Peter | Australia | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Belgium) | Spijkerman, Rose | Belgium | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Germany) | Bruendel, Steffen | Germany | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Great Britain and Ireland) | Meyer, Jessica | Great Britain and Ireland | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Indochina) | Vu-Hill, Kimloan | Indochina | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (New Zealand) | Phillips, Jock | New Zealand | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Violence |
| Canada | Granatstein, J. L. | Canada | Home Front, Post-war, Pre-war, Violence |
| China | Mühlhahn, Klaus | China | Home Front, Post-war, Power, Pre-war, Violence |
| Civilian and Military Power | Sondhaus, Lawrence | Austria, France, Germany, Great Britain, Hungary, Italy, Russian Empire, USA | Power |
| Civilian and Military Power (France) | Bourlet, Michaël | France | Power |
| Civilian and Military Power (Great Britain and Ireland) | Johnson, Matthew | Great Britain and Ireland | Power |
| Civilian and Military Power (Newfoundland) | Baker, Melvin | Newfoundland | Home Front |
| Civilian Morale | Ermacora, Matteo | Austria-Hungary, France, Germany, Great Britain and Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| Colonial Military Participation in Europe (Africa) | Koller, Christian | East and Central Africa, Northern Africa, West Africa | Violence |
| Commemoration, Cult of the Fallen (India) | Chhina, Rana and Chhina, Adil | India | Post-war |
| Commemoration, Cult of the Fallen (Indochina) | Jennings, Eric Thomas | Indochina | Post-war |
| Commemoration, Cult of the Fallen (Union of South Africa) | de Vries, Jacques Jean Pierre | Union of South Africa | Post-war |
| Destruction of the Ecosystem | Keller, Tait | Belgium, Canada, France, Germany, Indonesia, Mexico, USA | Violence |
| Diplomacy (Portugal) | Oliveira, Pedro Aires | Portugal | Power |
| Dominion Soldiers on Leave in Europe (New Zealand) | Barnes, Felicity | New Zealand | Violence |
| Drugs | Kamieński, Łukasz | Austria-Hungary, Canada, France, Germany, Great Britain, Ottoman Empire, Russian Empire, USA | Violence |
| Extra-European Theatres of War | Moyd, Michelle | Australia, China, East and Central Africa, Egypt, France, India, Indochina, Iraq, Japan, Micronesia, New Zealand, Northern Africa, Ottoman Empire, Southern Africa, Syria, West Africa | Violence |
| Film/Cinema (France) | Paris, Michael | France | Media |
| Film/Cinema (Great Britain) | Paris, Michael | Great Britain | Media, Post-war |
| Forced Labour | Thiel, Jens and Westerhoff, Christian | Austria-Hungary, Belgium, France, Germany, Poland, Russian Empire | Violence |
| Foreign Policy (The Netherlands) | Abbenhuis, Maartje | The Netherlands | Power |
| France | Beaupré, Nicolas | France | Home Front, Power, Pre-war, Violence |
| German versus US Intelligence in Latin America | Bisher, Jamie | Brazil, Chile, Germany, Mexico, USA | Media, Power |
| Germany | Hirschfeld, Gerhard | Germany | Home Front, Power, Pre-war, Violence |
| Governments, Parliaments and Parties | Oppelland, Torsten | Austria-Hungary, Belgium, Canada, France, Germany, Great Britain and Ireland, Italy, Japan, Ottoman Empire, Russian Empire, Sweden, USA | Power |
| Governments, Parliaments and Parties (Austria) | Boyer, John W. | Austria | Power |
| Governments, Parliaments and Parties (Belgium) | Gerard, Emmanuel | Belgium | Power |
| Governments-Parliaments and Parties (Hungary) | Joó, András | Hungary | Power |
| Great Britain | Badsey, Stephen | Great Britain | Home Front, Media, Post-war, Power, Violence |
| Health and Medicine (India) | Sehrawat, Samiksha | India | Home Front |
| Historiography 1918-Today (Canada) | Shaw, Amy J. | Canada | Post-war |
| Historiography 1918-Today (India) | Stadtler, Florian | India | Post-war |
| Humanitarianism (The Netherlands) | Bergen, Leo Van | The Netherlands | Home Front |
| Indigenous Experience of War (British Dominions) | Riseman, Noah and Winegard, Timothy C. | Australia, Canada, New Zealand, Newfoundland, Union of South Africa | Violence |
| Ireland | Grayson, Richard S. | Ireland | Home Front, Post-war, Power, Pre-war, Violence |
| Labour (India) | Singha, Radhika | India | Home Front |
| Literature | Budgen, David | Austria, France, Germany, Great Britain, Russian Empire, USA | Media |
| Literature (Africa) | Orosz, Kenneth J. | Africa | Media |
| Literature (Germany) | Hüppauf, Bernd | Germany | Media |
| Literature (Great Britain and Ireland) | Potter, Jane | Great Britain, Ireland | Media |
| Making Sense of the War (Belgium) | De Schaepdrijver, Sophie | Belgium | Media |
| Making Sense of the War (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Media |
| Maps, Geography and the Representation of Space | Schneider, Ute | Belgium, France, Germany, Great Britain | Media |
| Military and Strategy (Sweden) | Åselius, Gunnar | Sweden | Violence |
| Military and Strategy (The Netherlands) | Klinkert, Wim | The Netherlands | Violence |
| Military Developments of World War I | Zabecki, David T. | France, Germany, Great Britain | Violence |
| Military Lessons of the First World War | Gardner, Nikolas | France, Germany, Great Britain, Italy, Russian Empire, USA | Post-war, Violence |
| Minorities in Germany (Denmark) | Schultz Hansen, Hans | Denmark | Home Front |
| Mutilation and Disfiguration | Anderson, Julie | Australia, Canada, France, Germany, Great Britain, New Zealand, USA | Violence |
| Newfoundland | Hiller, James K. and O'Brien, Mike | Newfoundland | Home Front, Power, Violence |
| Northern Africa | DeGeorges, Thomas Patrick | Northern Africa | Home Front, Post-war, Pre-war, Violence |
| Occupation during and after the War (Germany) | Schröder, Joachim and Watson, Alexander | Germany | Post-war, Power |
| On the Road to Modern War | Showalter, Dennis | France, Germany, Great Britain, Italy, Japan, Russian Empire, USA | Violence |
| Othering/Atrocity Propaganda | Bruendel, Steffen | Austria-Hungary, France, Germany, Great Britain, Russian Empire, USA | Media |
| Photography | Roberts, Hilary | Australia, Austria-Hungary, Belgium, Canada, France, Germany, Great Britain, New Zealand, Russian Empire, USA | Media |
| Portugal | Rollo, Maria Fernanda, Pires, Ana Paula and Meneses, Filipe Ribeiro de | Portugal | Home Front, Power, Pre-war, Violence |
| Prisoners of War | Jones, Heather | Austria-Hungary, Bulgaria, France, Germany, Great Britain, Italy, Ottoman Empire, Russian Empire, Serbia | Violence |
| Prisoners of War (Australia) | Pegram, Aaron | Australia | Violence |
| Prisoners of War (Germany) | Jones, Heather and Hinz, Uta | Germany | Violence |
| Propaganda in the Colonies (Africa) | Orosz, Kenneth J. | Africa | Media |
| Propaganda: Media in War Politics | Badsey, Stephen | France, Germany, Great Britain and Ireland, USA | Media |
| Recruitment and Conscription (Canada) | Sharpe, Christopher | Canada | Violence |
| Religion (Portugal) | Moura, Maria Lúcia de Brito | Portugal | Home Front, Power, Violence |
| Science and Technology (Canada) | Iarocci, Andrew | Canada | Home Front |
| Sepoy Letters (India) | Omissi, David | India | Home Front |
| Siam | Hell, Stefan | Siam | Home Front, Post-war, Power, Violence |
| Social Costs of War | Redding, Kimberly A. | Austria-Hungary, Belarus, Belgium, France, Germany, Great Britain, Italy, Ottoman Empire, Poland, Serbia, The Netherlands, USA, Ukraine | Home Front |
| Soldier Newspapers | Nelson, Robert L. | France, Germany, Great Britain | Media |
| South African Troops in Europe and the Middle East (Union of South Africa) | Delport, Anri | Union of South Africa | Violence |
| Southern Africa | Storey Kelleher, William | Southern Africa | Home Front, Power, Pre-war, Violence |
| The Military at Home | Roynette, Odile | Austria-Hungary, France, Germany, Great Britain, Russian Empire, USA | Home Front |
| The Military Collapse of the Central Powers | Tunstall, Graydon A. | Austria, Czechoslovakia, Germany, Hungary, Italy, Ottoman Empire | Violence |
| Union of South Africa | Stapleton, Timothy J. | Union of South Africa | Home Front, Post-war, Power, Pre-war, Violence |
| United States of America | Keene, Jennifer D. | USA | Home Front, Media, Post-war, Power, Violence |
| War Aims and War Aims Discussions (Great Britain and Ireland) | Millman, Brock | Great Britain and Ireland | Power |
| War Aims and War Aims Discussions (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Power |
| War Correspondents | Luckhurst, Tim | France, Germany, Great Britain, USA | Media |
| Warfare 1914-1918 | Philpott, William | Austria-Hungary, France, Germany, Great Britain, Italy, Russian Empire, USA | Violence |
| Warfare 1914-1918 (Australia) | Westerman, William | Australia | Violence |
| Warfare 1914-1918 (Belgium) | Simoens, Tom | Belgium | Violence |
| Warfare 1914-1918 (Canada) | Oliver, Dean F. | Canada | Violence |
| Warfare 1914-1918 (Germany) | Pöhlmann, Markus | Germany | Violence |
| Warfare 1914-1918 (Newfoundland) | Baker, Melvin | Newfoundland | Violence |
| Warfare 1914-1918 (New Zealand) | Fox, Aaron Patrick | New Zealand | Violence |
| Warfare 1917-1918 (USA) | Grotelueschen, Mark E. | USA | Violence |
| War Letters: Communication between Front and Home Front | Hanna, Martha | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, New Zealand, Russian Empire | Home Front |
| War Letters (Italy) | Stiaccini, Carlo | Italy | Home Front |
| War Losses (Africa) | Lunn, Joe Harris | East and Central Africa, Northern Africa, Southern Africa, Union of South Africa, West Africa | Violence |
| War Losses (Australia) | Noonan, David C. | Australia | Violence |
| War Losses (Canada) | Cook, Tim and Stewart, William | Canada | Violence |
| War Losses (Germany) | Whalen, Robert Weldon | Germany | Violence |
| War Losses (USA) | Byerly, Carol R. | USA | Violence |
| Weapons | Audoin-Rouzeau, Stéphane | France, Germany, Great Britain | Violence |
| Western Front | Krause, Jonathan | France, Germany, Great Britain | Violence |
| Women’s Mobilisation for War (Australia) | Frances, Rae | Australia | Home Front |
