| Afrikaner (Boer) Rebellion (Union of South Africa) | Wessels, André | Union of South Africa | Violence |
| Antisemitism | Bergmann, Werner and Wyrwa, Ulrich | Austria, Belgium, Bulgaria, Czechoslovakia, France, Germany, Great Britain, Greece, Hungary, Italy, Poland, Romania, Russian Empire, Serbia | Power |
| Armenian Genocide | Suny, Ronald Grigor | Armenia, Ottoman Empire | Violence |
| Art (Italy) | Cioli, Monica | Italy | Media |
| Atrocities | Kramer, Alan | Austria, Belgium, France, Germany, Great Britain, Ottoman Empire, Serbia, Ukraine | Violence |
| Bereavement and Mourning (Russian Empire) | Malysheva, Svetlana | Russian Empire | Home Front |
| Bereavement and Mourning (USA) | Hulver, Richard Allen | USA | 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 (Austria-Hungary) | Lein, Richard | Austria, Hungary | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (New Zealand) | Phillips, Jock | New Zealand | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (USA) | Gutiérrez, Edward A. | USA | Violence |
| Children and Youth: Ottoman Empire (Ottoman Empire/Middle East) | Maksudyan, Nazan | Ottoman Empire | Home Front |
| Civilian and Military Power (Great Britain and Ireland) | Johnson, Matthew | Great Britain and Ireland | Power |
| Civilian Morale | Ermacora, Matteo | Austria-Hungary, France, Germany, Great Britain and Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| 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 |
| Colonial Military Participation in Europe (Africa) | Koller, Christian | East and Central Africa, Northern Africa, West Africa | Violence |
| Commemoration, Cult of the Fallen (Australia) | Beaumont, Joan | Australia | Post-war |
| Commemoration, Cult of the Fallen (India) | Chhina, Rana and Chhina, Adil | India | Post-war |
| Commemoration, Cult of the Fallen (Russian Empire) | Cohen, Aaron | Russian Empire | Post-war |
| Commemoration, Cult of the Fallen (Union of South Africa) | de Vries, Jacques Jean Pierre | Union of South Africa | Post-war |
| Controversy: The Media's Responsibility for Crises and Conflicts in the Age of Imperialism | Geiss, Peter | Austria, France, Germany, Great Britain, Northern Africa, Ottoman Empire, Russian Empire, Serbia, Spain, USA, Union of South Africa | Media, Pre-war |
| Controversy: Total War | Segesser, Daniel Marc | Australia, France, Germany, Great Britain, Ireland, Italy, Japan, USA | Power |
| Crumbling of Empires and Emerging States: Czechoslovakia and Yugoslavia as (Multi)national Countries | Boeckh, Katrin | Czechoslovakia, Yugoslavia | Power |
| Demobilization | Barry, Gearóid | Austria-Hungary, France, Germany, Great Britain, India, Ireland, Italy, Northern Africa, Poland, Russian Empire, USA | Post-war |
| Domestic Politics and Neutrality (Sweden) | Hedén, Anne | Sweden | Power |
| Easter Rising (Great Britain and Ireland) | McGarry, Fearghal | Great Britain, Ireland | Power |
| Economies and Home Front (Union of South Africa) | Nasson, Bill | Union of South Africa | Home Front |
| Enemy Aliens and Internment | Stibbe, Matthew | Austria-Hungary, Germany, Great Britain, USA | Power |
| Exile and Migration (Switzerland) | Huber, Anja | Switzerland | Home Front |
| 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 |
| Fascism and the Radical Right | Corni, Gustavo | Germany, Italy | Post-war |
| Film/Cinema | Smither, Roger | Belgium, France, Germany, Great Britain, Italy, Russian Empire, USA | Media |
| Film/Cinema (Denmark) | Bendtsen, Bjarne Søndergaard | Denmark | Media |
| Film/Cinema (Great Britain) | Paris, Michael | Great Britain | Media, Post-war |
| Film/Cinema (South East Europe) | Vučetić, Radina | Albania, Bulgaria, Greece, Romania, Serbia, Yugoslavia | Media |
| France | Beaupré, Nicolas | France | Home Front, Power, Pre-war, Violence |
| 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 (Canada) | MacKenzie, David | Canada | Power |
| Governments, Parliaments and Parties (Germany) | Oppelland, Torsten | Germany | Power |
| Governments, Parliaments and Parties; Political Movements and Protostate Formation (East Central Europe) | Richter, Klaus and Szlanta, Piotr | Estonia, Latvia, Lithuania, Poland | Power |
| Health and Medicine (India) | Sehrawat, Samiksha | India | Home Front |
| Historiography 1918-Today (Africa) | Koller, Christian | Africa | Post-war |
| Historiography 1918-Today (Australia) | Holbrook, Carolyn | Australia | Post-war |
| Historiography 1918-Today (Belgium) | Wouters, Nico | Belgium | Post-war |
| Historiography 1918-Today: Bulgaria (South East Europe) | Minkov, Stefan Marinov | Bulgaria | Post-war |
| Historiography 1918-Today (China) | Fan, Xin | China | Post-war |
| Historiography 1918-Today (East Central Europe) | Richter, Klaus and Szlanta, Piotr | Estonia, Latvia, Lithuania, Poland | Post-war |
| Historiography 1918-Today (India) | Stadtler, Florian | India | Post-war |
| Historiography 1918-Today (Middle East/Arab Lands) | Smith, Charles D. | Ottoman Empire | Post-war |
| Historiography 1918-Today (New Zealand) | Loveridge, Steven | New Zealand | Post-war |
| Humanitarianism (Spain) | Fuentes Codera, Maximiliano | Spain | Home Front |
| Imperialism | Barth, Boris | Austria-Hungary, Belgium, China, East and Central Africa, France, Germany, Great Britain, Italy, Japan, Northern Africa, Ottoman Empire, Portugal, Serbia, Southern Africa, USA, Union of South Africa, West Africa | Pre-war |
| International Law and the Laws of War | Quataert, Jean H. | Austria-Hungary, Belgium, Central America and Caribbean, China, France, Germany, Great Britain, Italy, Japan, Ottoman Empire, Russian Empire, South America, Switzerland, The Netherlands, USA | Pre-war |
| International Responses to the Russian Civil War (Russian Empire) | Mawdsley, Evan | Russian Empire | Post-war, Power, Violence |
| Internment (Canada) | Avery, Donald H. | Canada | Violence |
| Ireland | Grayson, Richard S. | Ireland | Home Front, Post-war, Power, Pre-war, Violence |
| Labor (Germany) | Welskopp, Thomas | Germany | Home Front |
| Labour (Belgium) | Luyten, Dirk | Belgium | Home Front |
| Labour (China) | Xu, Guoqi | China | Home Front |
| Labour (France) | Chancerel, Pierre | France | Home Front |
| Labour, Labour Movements, Trade Unions and Strikes (Austria-Hungary) | Beneš, Jakub | Austria, Czechoslovakia, Hungary | Home Front |
| Labour, Labour Movements, Trade Unions and Strikes (Switzerland) | Koller, Christian | Switzerland | Home Front |
| Labour Movements and Strikes (East Central Europe) | Brudek, Paweł | Estonia, Finland, Latvia, Lithuania, Poland | Home Front |
| Labour Movements and Strikes, Social Conflict and Control, Protest and Repression (France) | Haddad, Galit | France | Home Front |
| Labour Movements and Strikes, Social Conflict and Control, Protest and Repression (Germany) | Weinhauer, Klaus | Germany | Home Front |
| Labour Movements, Trade Unions and Strikes | Thompson, James | Austria-Hungary, Belgium, France, Germany, Great Britain, Italy, Russian Empire, Switzerland | Home Front |
| Labour Movements, Trade Unions and Strikes (Canada) | St. Croix, Brad | Canada | Home Front |
| Labour Movements, Trade Unions and Strikes (Latin America) | Rinke, Stefan | Argentina, Brazil, Chile, Mexico, Peru | Home Front |
| Labour Movements, Trade Unions and Strikes (Russian Empire) | Albert, Gleb | Russian Empire | Home Front |
| Labour Movements, Trade Unions and Strikes (USA) | Taillon, Paul Michel | USA | Home Front |
| Latin America | Rinke, Stefan and Kriegesmann, Karina | Argentina, Brazil, Chile, Mexico, Panama, Peru | Home Front, Media, Power, Pre-war, Violence |
| Literature | Budgen, David | Austria, France, Germany, Great Britain, Russian Empire, USA | Media |
| Literature (Africa) | Orosz, Kenneth J. | Africa | Media |
| Literature (Austria-Hungary) | Szczepaniak, Monika | Austria | Media |
| Literature (France) | Beaupré, Nicolas | France | Media |
| Literature (Italy) | Todero, Fabio | Italy | Media |
| Literature (Ottoman Empire) | Adak, Hülya | Ottoman Empire | Media |
| Literature (Switzerland) | Billeter, Nicole | Switzerland | Media |
| Making Sense of the War (Australia) | Ziino, Bart | Australia | Media |
| Making Sense of the War (India) | Markovits, Claude | India | Media |
| Making Sense of the War (Italy) | Lunzer, Renate | Italy | Media |
| Making Sense of the War (Latin America) | Goebel, Michael and Tato, María Inés | Argentina, Brazil, Colombia, Mexico, Nicaragua, Peru | Media |
| Making Sense of the War (Ottoman Empire/Middle East) | Minasidis, Charalampos | Ottoman Empire | Media |
| Making Sense of the War (The Netherlands) | Brolsma, Marjet | The Netherlands | Media |
| Making Sense of the War (USA) | Little, Branden | USA | Media |
| Migration and Mobility | Schrover, Marlou | Australia, Canada, Germany, Great Britain, Russian Empire, USA | Home Front |
| Minorities in Germany (Denmark) | Schultz Hansen, Hans | Denmark | Home Front |
| Moral Norms and Values | Barry, Gearóid | Austria, Canada, France, Germany, Great Britain and Ireland, Italy, Russian Empire, USA | Home Front |
| Mourning and Cult of the Fallen (Italy) | Janz, Oliver | Italy | Post-war |
| Mutilation and Disfiguration | Anderson, Julie | Australia, Canada, France, Germany, Great Britain, New Zealand, USA | Violence |
| Nationalism | Newman, John Paul | Austria-Hungary, Bulgaria, France, Germany, Greece, Italy, Ottoman Empire, Romania, Serbia | Pre-war |
| Northern Africa | DeGeorges, Thomas Patrick | Northern Africa | Home Front, Post-war, Pre-war, Violence |
| Occupation after the War (Belgium and France) | Godfroid, Anne | Belgium, France | Post-war, Power |
| Organization of War Economies (Ottoman Empire/Middle East) | Pitts, Graham | Ottoman Empire | Home Front |
| Organization of War Economies (Russian Empire) | Gatrell, Peter | Russian Empire | Home Front |
| Pacifism | Patterson, David S. | Austria, France, Germany, Great Britain, Russian Empire, The Netherlands, USA | Power |
| Persia/Iran | Atabaki, Touraj | Persia/Iran | Home Front, Post-war, Power, Violence |
| Post-war Agrarian Economic Policies (East Central Europe) | Richter, Klaus | Estonia, Latvia, Lithuania, Poland | Post-war |
| Post-war Conflict (Great Britain and Ireland) | Leeson, D. M. | Great Britain, Ireland | Post-war |
| Post-war Economies (France) | Le Bras, Stéphane | France | Post-war |
| Post-war Economies (Great Britain and Ireland) | Godden, Christopher | Great Britain and Ireland | Post-war |
| Post-war Economies (Italy) | Degli Esposti, Fabio | Italy | Post-war |
| Post-war Economies (Russian Empire) | Heywood, Anthony | Russian Empire | Post-war |
| Post-war Societies (Belgium) | Kesteloot, Chantal | Belgium | Post-war |
| Post-war Societies (East Central Europe) | Górny, Maciej | Belarus, Czechoslovakia, Estonia, Hungary, Latvia, Lithuania, Poland, Ukraine | Post-war |
| Post-war Societies (India) | Sarkar, Sumit | India | Post-war |
| Post-war Societies (Italy) | Baravelli, Andrea | Italy | Post-war |
| Post-war Societies (Middle East) | Schayegh, Cyrus | Egypt, Iraq, Lebanon, Persia/Iran, Syria | Post-war |
| Post-war Treaties (Ottoman Empire/ Middle East) | Smith, Leonard V. | Ottoman Empire | Post-war |
| Post-war Welfare Policies | Pironti, Pierluigi | Austria, Czechoslovakia, France, Germany, Great Britain, Italy, USA | Post-war |
| Press/Journalism (Russian Empire) | Zhdanova, Irina | Russian Empire | Media |
| Pre-war Paramilitary Mobilisation (Great Britain and Ireland) | Stover, Justin Dolan | Great Britain, Ireland | Pre-war |
| Prisoners of War and Internees (Great Britain) | Panayi, Panikos | Great Britain, Ireland | Violence |
| Prisoners of War and Internees (Union of South Africa) | Dedering, Tilman | Union of South Africa | Violence |
| Prisoners of War (East Central Europe) | Szlanta, Piotr and Richter, Klaus | Estonia, Finland, Latvia, Lithuania, Poland, Russian Empire | Violence |
| Prisoners of War (Ottoman Empire/Middle East) | Yanıkdağ, Yücel | Ottoman Empire | Violence |
| Propaganda at Home and Abroad (East Central Europe) | Brudek, Paweł | Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russian Empire | Media |
| Propaganda at Home and in Exile (South East Europe) | Foster, Samuel | Bulgaria, Greece, Montenegro, Romania, Serbia, Yugoslavia | Media |
| Propaganda in the Colonies (Africa) | Orosz, Kenneth J. | Africa | Media |
| Property Rights and Economic Nationalism | Caglioti, Daniela L. | Armenia, Austria-Hungary, France, Germany, Great Britain, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| Religious Mobilization and Popular Belief | Houlihan, Patrick J. | Africa, France, Germany, Great Britain, Italy, Palestine, Russian Empire, USA | Home Front |
| Resettlement | Gatrell, Peter | Austria-Hungary, Belgium, Bulgaria, France, Germany, Greece, Italy, Latvia, Lithuania, Poland, Romania, Russian Empire, Serbia | Power |
| Responses to the War (India) | Das, Santanu | India | Home Front |
| Revolutionary Networks (India) | Singh, Gajendra | India | Power |
| Revolutions | Fulwider, Chad R. | Austria-Hungary, Bulgaria, France, Germany, Greece, Italy, Ottoman Empire, Russian Empire | Power |
| Revolutions and Rebellions: Arab Revolt (Ottoman Empire/Middle East) | El Bakri, Alia | Ottoman Empire | Power |
| Revolutions and Rebellions: Van Resistance as Rebellion (Ottoman Empire/Middle East) | Cora, Yasar Tolga | Ottoman Empire | Power |
| Revolutions (East Central Europe) | Brudek, Paweł | Estonia, Finland, Latvia, Lithuania, Poland, Russian Empire | Power |
| Russian Civil War | Sumpf, Alexandre | Russian Empire | Post-war |
| Russian Empire | Sanborn, Joshua A. | Russian Empire | Home Front, Post-war, Power, Pre-war, Violence |
| Shifts and Tensions in Ethnic/National Groups | Chernev, Borislav | Austria-Hungary, Ottoman Empire, Russian Empire | Violence |
| Social Conflict | Morelon, Claire | Austria-Hungary, Belgium, France, Germany, Great Britain, Italy, Japan, Ottoman Empire, Russian Empire, Spain, Switzerland | Home Front |
| Social Conflict and Control, Protest and Repression (Austria-Hungary) | Healy, Maureen, Bronson, Dana and Jemal, Musa | Austria, Czechoslovakia, Hungary | Home Front |
| Social Conflict and Control, Protest and Repression (Indochina) | Morlat, Patrice | Indochina | Home Front |
| Social Conflict and Control, Protest and Repression (Japan) | Gordon, Andrew | Japan | Home Front |
| Social Conflict and Control, Protest and Repression (New Zealand) | Grant, David | New Zealand | Home Front |
| Social Conflict and Control, Protest and Repression (Russian Empire) | Melancon, Michael S. | Russian Empire | 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 |
| Social Movements (Latin America) | Rinke, Stefan | Argentina, Brazil, Chile, Mexico, Peru, Uruguay | Home Front |
| South African Troops in Europe and the Middle East (Union of South Africa) | Delport, Anri | Union of South Africa | Violence |
| Switzerland | Tanner, Jakob | Switzerland | Home Front, Media, Power |
| Teskilat-i Mahsusa (Ottoman Empire) | Moreau, Odile | Ottoman Empire | Power |
| The Churches | Houlihan, Patrick J. | Austria, France, Germany, Great Britain, Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| The Military Collapse of the Central Powers | Tunstall, Graydon A. | Austria, Czechoslovakia, Germany, Hungary, Italy, Ottoman Empire | Violence |
| The Way to War | Williamson, Jr., Samuel R. | Austria-Hungary, France, Germany, Great Britain, Ireland, Italy, Japan, Northern Africa, Russian Empire, Serbia | Pre-war |
| Union of South Africa | Stapleton, Timothy J. | Union of South Africa | Home Front, Post-war, Power, Pre-war, Violence |
| Urban Societies and Cities | Lees, Andrew | Austria-Hungary, France, Germany, Great Britain, Ottoman Empire, Russian Empire | Home Front |
| War Aims and War Aims Discussions (China) | Danner, Lukas K. | China | Power |
| War Aims and War Aims Discussions (East Central Europe) | Boysen, Jens | Lithuania, Poland | Power |
| War Aims and War Aims Discussions (Germany) | Löffelbein, Nils | Germany | Power |
| War in the Balkans | Hall, Richard C. | Albania, Bulgaria, Greece, Montenegro, Ottoman Empire, Romania, Serbia | Violence |
| War Losses (Russian Empire) | Sumpf, Alexandre | Russian Empire | Violence |
| Women's Mobilisation for War (Canada) | Glassford, Sarah | Canada | Home Front |
| Women’s Mobilization for War | Grayzel, Susan R. | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, India, Ireland, Italy, Russian Empire, USA | Home Front |
| Women's Mobilization for War (Great Britain and Ireland) | Noakes, Lucy | Great Britain, Ireland | Home Front |
| Women's Mobilization for War (Italy) | Bartoloni, Stefania | Italy | Home Front |
| Yugoslavia | Trgovčević, Ljubinka | Yugoslavia | Post-war, Power, Pre-war, Violence |
