| Air Warfare | Mahoney, Ross and Pugh, James | France, Germany, Great Britain, Italy, Russian Empire | Violence |
| Air Warfare (Italy) | Caffarena, Fabio | Italy | Violence |
| Alliance System 1914 | Kronenbitter, Günther | Afghanistan, Albania, Austria-Hungary, Belgium, Bulgaria, Egypt, France, Germany, Great Britain and Ireland, India, Italy, Japan, Latin America, Northern Africa, Ottoman Empire, Persia/Iran, Romania, Russian Empire, Serbia, Spain, USA | Pre-war |
| Arms Race prior to 1914, Armament Policy | Brose, Eric | France, Germany, Great Britain, Ottoman Empire, Russian Empire | Pre-war |
| Australia | Beaumont, Joan | Australia | Home Front, Post-war, Power, Pre-war, Violence |
| Baltic States and Finland | Richter, Klaus | Estonia, Finland, Latvia, Lithuania | Home Front, Post-war, Power, Pre-war, Violence |
| Belgium | De Schaepdrijver, Sophie | Belgium | Home Front, Post-war, Power, Violence |
| Bereavement and Mourning | Hettling, Manfred and Schölz, Tino | Australia, Austria, Belgium, Bulgaria, Canada, China, Czechoslovakia, Germany, Great Britain, Greece, Hungary, India, Japan, Korea, Lithuania, New Zealand, Ottoman Empire, Poland, Portugal, Russian Empire, USA, Union of South Africa | Home Front |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War | Loez, André | Austria-Hungary, Canada, France, Germany, Great Britain, Ireland, Italy, Russian Empire, USA | 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 (Austria-Hungary) | Lein, Richard | Austria, Hungary | 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 (Italy) | Wilcox, Vanda | Italy | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (New Zealand) | Phillips, Jock | New Zealand | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Ottoman Empire/ Middle East) | Beşikçi, Mehmet | Ottoman Empire | 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 |
| Centenary (Canada) | Bird, Geoffrey | Belgium, Canada, France | Post-war |
| Children and Youth: Ottoman Empire (Ottoman Empire/Middle East) | Maksudyan, Nazan | Ottoman Empire | Home Front |
| Civilian and Military Power | Sondhaus, Lawrence | Austria, France, Germany, Great Britain, Hungary, Italy, Russian Empire, USA | Power |
| Civilian and Military Power (Australia) | Connor, John | Australia | Power |
| Civilian and Military Power (Great Britain and Ireland) | Johnson, Matthew | Great Britain and Ireland | Power |
| Civilian and Military Power (Japan) | Dickinson, Frederick R. | Japan | Power, Pre-war |
| Civilian and Military Power (Newfoundland) | Baker, Melvin | Newfoundland | Home Front |
| Civilian and Military Power (Ottoman Empire) | Maksudyan, Nazan | Ottoman Empire | Power |
| Civilian and Military Power (USA) | Ford, Nancy Gentile | USA | Power |
| Civilian Morale | Ermacora, Matteo | Austria-Hungary, France, Germany, Great Britain and Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| Civil-Military Relations during World War I (Russian Empire) | Porshneva, Olga | Russian Empire | Power, Violence |
| Colonial Empires after the War/Decolonization | Kitchen, James E. | Belgium, East and Central Africa, Egypt, France, Great Britain and Ireland, India, Indochina, Northern Africa, Ottoman Empire, Palestine, Portugal, Russian Empire, Syria | Post-war |
| Commemoration, Cult of the Fallen (Indochina) | Jennings, Eric Thomas | Indochina | Post-war |
| Commemoration, Cult of the Fallen (Newfoundland) | Cadigan, Sean T. | Newfoundland | Post-war, Violence |
| Conscription (Australia) | Beaumont, Joan | Australia | Violence |
| Controversy: Total War | Segesser, Daniel Marc | Australia, France, Germany, Great Britain, Ireland, Italy, Japan, USA | Power |
| Dominions’ Military Relationship to Great Britain 1902-1914 (British Dominions) | Marti, Steve | Australia, Canada, Great Britain, New Zealand, Newfoundland, Union of South Africa | Power, Pre-war, Violence |
| Eastern Front | Dowling, Timothy C. | Russian Empire | 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 |
| Food and Nutrition (Russian Empire) | Golubinov, Iaroslav | Russian Empire | Home Front |
| France | Beaupré, Nicolas | France | Home Front, Power, Pre-war, Violence |
| French Canada and the War (Canada) | Morin-Pelletier, Mélanie | Canada | Home Front, Media, Power, Pre-war, Violence |
| Germany | Hirschfeld, Gerhard | Germany | Home Front, Power, Pre-war, Violence |
| Governments, Parliaments and Parties (Australia) | Connor, John | Australia | Power |
| Governments, Parliaments and Parties (Canada) | MacKenzie, David | Canada | Power |
| Great Britain | Badsey, Stephen | Great Britain | Home Front, Media, Post-war, Power, Violence |
| Historiography 1918-Today: Bulgaria (South East Europe) | Minkov, Stefan Marinov | Bulgaria | Post-war |
| Historiography 1918-Today (Canada) | Shaw, Amy J. | Canada | Post-war |
| Historiography 1918-Today (France) | Tison, Stéphane | France | Post-war |
| Historiography 1918-Today (USA) | Price, James S. | USA | Post-war |
| 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, Labour Movements and Strikes (Ottoman Empire/ Middle East) | Thompson, Elizabeth and Akin, Yiğit | Ottoman Empire | Home Front |
| Labour Movements, Trade Unions and Strikes (Canada) | St. Croix, Brad | Canada | Home Front |
| Labour (Portugal) | Azevedo, Ana Carina Gerardo da Silva | Portugal | Home Front |
| Making Sense of the War (Italy) | Lunzer, Renate | Italy | Media |
| Making Sense of the War (New Zealand) | Ross, Kirstie | New Zealand | Media |
| Making Sense of the War (Ottoman Empire/Middle East) | Minasidis, Charalampos | Ottoman Empire | Media |
| Maps, Geography and the Representation of Space | Schneider, Ute | Belgium, France, Germany, Great Britain | Media |
| Military and Strategy (Denmark) | Clemmesen, Michael H. | Denmark | Violence |
| 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 |
| Nationalities (Austria-Hungary) | Stergar, Rok | Austria-Hungary | Home Front |
| Naval Warfare | Osborne, Eric W. | Austria-Hungary, Germany, Great Britain, Italy, Ottoman Empire, USA | Violence |
| New Zealand | Hunter, Kate | New Zealand | Home Front, Post-war, Power, Violence |
| Norway | Haug, Karl Erik | Norway | Home Front, Media, Power, Violence |
| Occupation during and after the War (East Central Europe) | Lehnstaedt, Stephan | Poland | Post-war, Power |
| On the Road to Modern War | Showalter, Dennis | France, Germany, Great Britain, Italy, Japan, Russian Empire, USA | Violence |
| Ottoman Empire/Middle East | Yanıkdağ, Yücel | Ottoman Empire | Home Front, Post-war, Power, Pre-war, Violence |
| Portugal | Rollo, Maria Fernanda, Pires, Ana Paula and Meneses, Filipe Ribeiro de | Portugal | Home Front, Power, Pre-war, Violence |
| Post-war Societies (Africa) | Nkwi, Walter Gam | East and Central Africa, West Africa | Post-war |
| Post-war Turmoil and Violence (Hungary) | Révész, Tamás | Hungary | Post-war |
| Pre-war Military Planning | Seligmann, Matthew S. | Austria-Hungary, France, Germany, Great Britain and Ireland | Pre-war |
| Pre-war Military Planning and War Aims (Union of South Africa) | Katz, David Brock | Union of South Africa | Pre-war |
| Pre-war Military Planning (Australia) | Wilcox, Craig | Australia | Pre-war |
| Pre-war Military Planning (Austria-Hungary) | Kronenbitter, Günther | Austria | Pre-war |
| Pre-war Military Planning (Belgium) | Bechet, Christophe | Belgium | Pre-war |
| Pre-war Military Planning (Canada) | Wood, James A. | Canada | Pre-war |
| Pre-war Military Planning (France) | Cosson, Olivier | France | Pre-war |
| Pre-war Military Planning (Great Britain) | Strachan, Hew | Great Britain | Pre-war |
| Pre-war Military Planning (Italy) | Cappellano, Filippo | Italy | Pre-war |
| Pre-war Military Planning (Ottoman Empire) | Moreau, Odile | Ottoman Empire | Pre-war |
| Pre-war Military Planning (South East Europe) | Tasić, Dmitar | Bulgaria, Greece, Montenegro, Romania, Serbia | Pre-war |
| Pre-war Military Planning (USA) | Yockelson, Mitchell | USA | Pre-war |
| Propaganda at Home (Australia) | Robertson, Emily | Australia | Media |
| Propaganda at Home (Great Britain and Ireland) | Monger, David | Great Britain, Ireland | Media |
| Propaganda in the Colonies (Africa) | Orosz, Kenneth J. | Africa | Media |
| Recruitment and Conscription (Canada) | Sharpe, Christopher | Canada | Violence |
| Religion (Australia) | Reynaud, Daniel | Australia | Home Front |
| Resistance and Rebellions (Africa) | Moyd, Michelle | Africa | Power |
| Responses to the War (India) | Das, Santanu | India | Home Front |
| Rural Society | Ermacora, Matteo | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, India, Italy, Russian Empire, USA | Home Front |
| Russian Empire | Sanborn, Joshua A. | Russian Empire | Home Front, Post-war, Power, Pre-war, Violence |
| Science and Technology (Ottoman Empire/Middle East) | Williams, Elizabeth | Ottoman Empire | Home Front |
| Science and Technology (USA) | Heller, Charles E. | USA | Home Front |
| Serbia | Bjelajac, Mile | Serbia | Home Front, Post-war, Power, Pre-war, Violence |
| Social Conflict and Control, Protest and Repression (Australia) | Crotty, Martin | Australia | Home Front |
| Social Conflict and Control, Protest and Repression (USA) | Strauss, Lon | USA | Home Front |
| 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 |
| South Africa and the German East Africa Campaign (Union of South Africa) | Samson, Anne | Union of South Africa | Violence |
| Southern Africa | Storey Kelleher, William | Southern Africa | Home Front, Power, Pre-war, Violence |
| Subjectivity and Emotions (Great Britain and Ireland) | Meyer, Jessica | Great Britain, Ireland | Home Front |
| The Churches | Houlihan, Patrick J. | Austria, France, Germany, Great Britain, Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| 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 (Belgium) | Tuyll, Hubert van | Belgium | Power |
| War Aims and War Aims Discussions (Ottoman Empire) | Yasamee, Feroze | Ottoman Empire | Power |
| 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 (East Central Europe) | Szlanta, Piotr and Richter, Klaus | Estonia, Finland, Latvia, Lithuania, Poland | Violence |
| Warfare 1914-1918 (Germany) | Pöhlmann, Markus | Germany | Violence |
| Warfare 1914-1918 (Great Britain and Ireland) | Searle, Alaric | Great Britain and Ireland | Violence |
| Warfare 1914-1918 (Italy) | Cappellano, Filippo | Italy | Violence |
| Warfare 1914-1918 (Newfoundland) | Baker, Melvin | Newfoundland | Violence |
| Warfare 1914-1918 (New Zealand) | Fox, Aaron Patrick | New Zealand | Violence |
| Warfare 1914-1918 (Ottoman Empire/Middle East) | Baş, Mehmet Fatih | Egypt, Iraq, Lebanon, Ottoman Empire, Palestine, Syria | Violence |
| Warfare 1914-1918 (Russian Empire) | Steinberg, John W. | Russian Empire | Violence |
| Warfare 1917-1918 (USA) | Grotelueschen, Mark E. | USA | Violence |
| War Losses (Africa) | Lunn, Joe Harris | East and Central Africa, Northern Africa, Southern Africa, Union of South Africa, West Africa | Violence |
| War Losses (Italy) | Scolè, Pierluigi | Italy | Violence |
| War Losses (Russian Empire) | Sumpf, Alexandre | Russian Empire | Violence |
| Wartime and Post-war Societies (Sweden) | Sturfelt, Lina | Sweden | Home Front |
| West Africa | Njung, George N. | West Africa | Power, Pre-war, Violence |
| Western Front | Krause, Jonathan | France, Germany, Great Britain | Violence |
| Willingly to War. Public Response to the Outbreak of War | Becker, Jean-Jacques | Australia, Austria-Hungary, Belgium, Brazil, Bulgaria, Canada, China, France, Germany, Great Britain, Greece, Ireland, Italy, Japan, New Zealand, Newfoundland, Portugal, Romania, Russian Empire, Serbia, Switzerland, USA, Union of South Africa | Power |
| Women’s Mobilization for War | Grayzel, Susan R. | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, India, Ireland, Italy, Russian Empire, USA | Home Front |
