| Afghanistan | Beattie, Hugh | Afghanistan | Home Front, Post-war, Power |
| African American Soldiers (USA) | McDaniels III, Pellom | USA | Violence |
| Antisemitism | Bergmann, Werner and Wyrwa, Ulrich | Austria, Belgium, Bulgaria, Czechoslovakia, France, Germany, Great Britain, Greece, Hungary, Italy, Poland, Romania, Russian Empire, Serbia | Power |
| Anzac (Australia) | Seal, Graham | Australia | Violence |
| Armenian Genocide | Suny, Ronald Grigor | Armenia, Ottoman Empire | Violence |
| Atrocities | Kramer, Alan | Austria, Belgium, France, Germany, Great Britain, Ottoman Empire, Serbia, Ukraine | Violence |
| 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 |
| Bereavement and Mourning (Africa) | Owino, Meshack | East and Central Africa, Southern Africa, West Africa | Home Front |
| Bereavement and Mourning (Australia) | Scates, Bruce | Australia | Post-war |
| Bereavement and Mourning (Belgium) | van Ypersele, Laurence | Belgium | Home Front |
| Bereavement and Mourning, Commemoration and Cult of the Fallen (France) | Dalisson, Rémi and Julien, Elise | France | Home Front, Post-war |
| Bereavement and Mourning (Germany) | Fehlemann, Silke | Germany | Home Front |
| Bereavement and Mourning (Great Britain) | Jalland, Patricia | Great Britain | Home Front |
| Bereavement and Mourning (New Zealand) | Patrick, Rachel | New Zealand | Home Front |
| Bereavement and Mourning (Russian Empire) | Malysheva, Svetlana | Russian Empire | Home Front |
| Bereavement and Mourning (South East Europe) | Pintar, Olga Manojlovic | Bulgaria, Romania, Serbia, Yugoslavia | 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 (Germany) | Bruendel, Steffen | Germany | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Indochina) | Vu-Hill, Kimloan | Indochina | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (USA) | Gutiérrez, Edward A. | USA | Violence |
| Bulgaria | Hall, Richard C. | Bulgaria | Home Front, Post-war, Power, Pre-war, Violence |
| Censorship | Demm, Eberhard | Austria-Hungary, France, Germany, Great Britain, Italy, Russian Empire | Media |
| Children and Childhood (France) | Pignot, Manon | France | Home Front |
| Children and War (Italy) | Gibelli, Antonio | Italy | Home Front |
| Children and Youth | Donson, Andrew | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, Italy, New Zealand, USA | Home Front |
| Children and Youth: Ottoman Empire (Ottoman Empire/Middle East) | Maksudyan, Nazan | Ottoman Empire | Home Front |
| China | Mühlhahn, Klaus | China | Home Front, Post-war, Power, Pre-war, Violence |
| Civilian and Military Power (France) | Bourlet, Michaël | France | Power |
| 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 |
| Colonial Military Participation in Europe (Africa) | Koller, Christian | East and Central Africa, Northern Africa, West Africa | Violence |
| Colonial Society (Indochina) | Brocheux, Pierre | Indochina | Home Front, Power, Pre-war |
| Colonial Warfare and Occupation (Africa) | Digre, Brian | East and Central Africa, Southern Africa, Union of South Africa, West Africa | Post-war, Power |
| Commemoration and Cult of the Fallen (Canada) | Vance, Jonathan F. | Canada | Post-war |
| Commemoration and Remembrance (USA) | Trout, Steven | USA | Post-war |
| Commemoration, Cult of the Fallen (Africa) | Chetty, Suryakanthie and Ginio, Ruth | East and Central Africa, Southern Africa, Union of South Africa, West Africa | Post-war |
| Commemoration, Cult of the Fallen (East Central Europe) | Jalonen, Jussi, Richter, Klaus and Szlanta, Piotr | Estonia, Finland, Latvia, Lithuania, Poland | Post-war |
| Commemoration, Cult of the Fallen (Germany) | Rossol, Nadine | Germany | 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 |
| Commemoration, Cult of the Fallen (New Zealand) | Harris, Margaret | New Zealand | Post-war |
| Commemoration, Cult of the Fallen (Russian Empire) | Cohen, Aaron | Russian Empire | Post-war |
| Commemoration, Cult of the Fallen (South East Europe) | Šarenac, Danilo | Bulgaria, Greece, Romania, Yugoslavia | Post-war |
| Commemoration (Switzerland) | Ziegler, Béatrice and Kuhn, Konrad | Switzerland | Post-war |
| Conscription (Australia) | Beaumont, Joan | Australia | Violence |
| 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: War-related Changes in Gender Relations: The Issue of Women’s Citizenship | Bader-Zaar, Birgitta | Austria-Hungary, Belgium, Germany, Great Britain, USA | Home Front |
| Crumbling of Empires and Emerging States: Czechoslovakia and Yugoslavia as (Multi)national Countries | Boeckh, Katrin | Czechoslovakia, Yugoslavia | Power |
| Denmark | Sørensen, Nils Arne | Denmark | Home Front, Media, Post-war, Power, Pre-war, Violence |
| Destruction of the Ecosystem | Keller, Tait | Belgium, Canada, France, Germany, Indonesia, Mexico, USA | Violence |
| Discipline and Military Justice (Italy) | Guerrini, Irene and Pluviano, Marco | Italy | Violence |
| Disease and Public Health (Ottoman Empire/Middle East) | Schulze-Tanielian, Melanie | Ottoman Empire | Home Front |
| Disease and Public Health (Portugal) | Garnel, Rita | Portugal | Home Front |
| Domestic Politics and Neutrality (Switzerland) | Moos, Carlo | Switzerland | Power |
| Dominion Soldiers on Leave in Europe (New Zealand) | Barnes, Felicity | New Zealand | Violence |
| East and Central Africa | Samson, Anne | East and Central Africa | Power, Violence |
| Easter Rising (Great Britain and Ireland) | McGarry, Fearghal | Great Britain, Ireland | Power |
| Enemy Aliens and Internment | Stibbe, Matthew | Austria-Hungary, Germany, Great Britain, USA | Power |
| Espionage | Debruyne, Emmanuel | Austria-Hungary, Belgium, France, Germany, Great Britain, Ireland, Italy, Russian Empire, Serbia, The Netherlands, USA | Violence |
| Ethnic Minorities at War (USA) | Laskin, David | USA | Violence |
| Exile and Migration (Spain) | Cordero Olivero, Inmaculada | Spain | Home Front |
| Exile and Migration (The Netherlands) | Schrover, Marlou | The Netherlands | 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 (Belgium) | Engelen, Leen | Belgium | Media |
| Film/Cinema (South East Europe) | Vučetić, Radina | Albania, Bulgaria, Greece, Romania, Serbia, Yugoslavia | Media |
| Food and Nutrition (Austria-Hungary) | Langthaler, Ernst | Austria, Hungary | Home Front |
| Food and Nutrition (Belgium) | Vrints, Antoon | Belgium | Home Front |
| Food and Nutrition (Germany) | Davis, Belinda | Germany | Home Front |
| Food and Nutrition (Indochina) | Peters, Erica J. | Indochina | Home Front |
| Food and Nutrition (Italy) | Dentoni, Maria Concetta | Italy | Home Front |
| Food and Nutrition (Ottoman Empire/Middle East) | Schulze-Tanielian, Melanie | Ottoman Empire | Home Front |
| Food and Nutrition (Portugal) | Rollo, Maria Fernanda and Pires, Ana | Portugal | Home Front |
| 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 |
| 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 (Canada) | MacKenzie, David | Canada | Power |
| Governments, Parliaments and Parties (Japan) | Dickinson, Frederick R. | Japan | Power |
| Governments, Parliaments and Parties, Labour, Labour Movements and Strikes (Union of South Africa) | Visser, Wessel Pretorius | Union of South Africa | Home Front, Power |
| Governments, Parliaments and Parties (New Zealand) | McAloon, Jim | New Zealand | Power, Pre-war |
| Graphic Arts and Advertising as War Propaganda | Aulich, James | France, Germany, Great Britain, Russian Empire, USA | Media |
| Historiography 1918-Today | Winter, Jay | Australia, France, Germany, Great Britain, Russian Empire | Post-war |
| Historiography 1918-Today (Australia) | Holbrook, Carolyn | Australia | Post-war |
| Historiography 1918-Today (Belgium) | Wouters, Nico | Belgium | Post-war |
| Historiography 1918-Today (Canada) | Shaw, Amy J. | Canada | Post-war |
| Historiography 1918-Today (France) | Tison, Stéphane | France | 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 |
| Historiography 1918-Today: Serbia and Montenegro (South East Europe) | Krivokapic-Jovic, Gordana | Montenegro, Serbia, Yugoslavia | Post-war |
| Humanitarianism (Spain) | Fuentes Codera, Maximiliano | Spain | Home Front |
| 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 |
| Indochinese Workers in France (Indochina) | Vu-Hill, Kimloan | Indochina | Home Front |
| Influenza Pandemic | Phillips, Howard | Africa, Australasia, Central Europe, East Asia, Eastern Europe, Latin America, Middle East, North America, South East Europe, South and South East Asia, Western Europe | Post-war |
| Influenza Pandemic (Africa) | Phillips, Howard | East and Central Africa, Northern Africa, Southern Africa, Union of South Africa, West Africa | Post-war |
| International Committee of the Red Cross | Herrmann, Irène and Palmieri, Daniel | Switzerland | Home Front, Post-war, Power, Pre-war, Violence |
| 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 |
| Internees (Switzerland) | Bürgisser, Thomas | Switzerland | Violence |
| Internment (Canada) | Avery, Donald H. | Canada | Violence |
| Italian Front | Wilcox, Vanda | Italy | Violence |
| Labor | Rowe, Steven E. | Austria-Hungary, Belgium, France, Germany, Great Britain, Italy, Russian Empire | Home Front |
| 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 (Great Britain and Ireland) | Wrigley, Chris | Great Britain, Ireland | Home Front |
| Labour, Labour Movements, Trade Unions and Strikes (Italy) | Ermacora, Matteo | Italy | 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, 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 (Australia) | Wise, Nathan | Australia | Home Front |
| Labour Movements, Trade Unions and Strikes (Belgium) | Vrints, Antoon | Belgium | 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 (Portugal) | Dias Pereira, Joana | Portugal | 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 |
| Labour (Russian Empire) | Melancon, Michael S. | Russian Empire | Home Front |
| Latin America | Rinke, Stefan and Kriegesmann, Karina | Argentina, Brazil, Chile, Mexico, Panama, Peru | Home Front, Media, Power, Pre-war, Violence |
| Literature (Austria-Hungary) | Szczepaniak, Monika | Austria | Media |
| Literature (Belgium) | De Schaepdrijver, Sophie | Belgium | Media |
| Literature (Germany) | Hüppauf, Bernd | Germany | Media |
| Luxembourg | Majerus, Benoît and Roemer, Charles | Luxembourg | Home Front, Post-war, Power, Violence |
| Making Sense of the War | Fox, Jo | Belgium, France, Germany, Great Britain | Media |
| Making Sense of the War (Australia) | Ziino, Bart | Australia | Media |
| Making Sense of the War (Belgium) | De Schaepdrijver, Sophie | Belgium | Media |
| Making Sense of the War (France) | Courmont, Juliette | France | Media |
| Making Sense of the War (Germany) | Ungern-Sternberg, Jürgen von | Germany | Media |
| Making Sense of the War (Great Britain and Ireland) | Pennell, Catriona | Great Britain, Ireland | 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 |
| Minorities (Ottoman Empire/Middle East) | Kieser, Hans-Lukas | Ottoman Empire | Home Front, Pre-war, Violence |
| 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 |
| Mutilation and Disfiguration (France) | Delaporte, Sophie | France | Violence |
| New Zealand | Hunter, Kate | New Zealand | Home Front, Post-war, Power, Violence |
| Norway | Haug, Karl Erik | Norway | Home Front, Media, Power, Violence |
| Occupation after the War (Belgium and France) | Godfroid, Anne | Belgium, France | Post-war, Power |
| Occupation during and after the War (East Central Europe) | Lehnstaedt, Stephan | Poland | Post-war, Power |
| Occupation during and after the War (Germany) | Schröder, Joachim and Watson, Alexander | Germany | Post-war, Power |
| Occupation during and after the War (Ottoman Empire) | Criss, Nur Bilge | Ottoman Empire | Post-war, Power |
| Occupation during and after the War (Russian Empire) | Dornik, Wolfram | Russian Empire | Post-war, Power |
| Occupation during and after the War (South East Europe) | Ristović, Milan | Albania, Bulgaria, Montenegro, Romania, Serbia | Post-war, Power |
| Occupation during the War | Corni, Gustavo | Albania, Austria-Hungary, Belgium, Bulgaria, France, Germany, Italy, Latvia, Lithuania, Montenegro, Poland, Romania, Serbia | Power |
| Occupation during the War (Belgium and France) | Wegner, Larissa | Belgium, France | Power |
| Organization of War Economies | Blum, Matthias, Eloranta, Jari and Osinsky, Pavel | Austria-Hungary, France, Germany, Great Britain, Russian Empire | Home Front |
| Organization of War Economies and War Finance (South East Europe) | Rafailović, Jelena | South East Europe | Home Front |
| Organization of War Economies (Australia) | Yule, Peter | Australia | Home Front |
| Organization of War Economies (Austria-Hungary) | Butschek, Felix | Austria, Hungary | Home Front |
| Organization of War Economies (Russian Empire) | Gatrell, Peter | Russian Empire | Home Front |
| Othering/Atrocity Propaganda | Bruendel, Steffen | Austria-Hungary, France, Germany, Great Britain, Russian Empire, USA | Media |
| Ottoman Empire/Middle East | Yanıkdağ, Yücel | Ottoman Empire | Home Front, Post-war, Power, Pre-war, Violence |
| 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 |
| Poland | Szlanta, Piotr | Poland | Home Front, Post-war, Power, Pre-war, 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 (Africa) | Walker-Said, Charlotte | East and Central Africa, Southern Africa, Union of South Africa, West Africa | Post-war |
| Post-war Economies (East Central Europe) | Morawski, Wojciech | Estonia, Finland, Latvia, Lithuania, Poland, Russian Empire | Post-war |
| Post-war Economies (France) | Le Bras, Stéphane | France | Post-war |
| Post-war Economies (Italy) | Degli Esposti, Fabio | Italy | Post-war |
| Post-war Economies (New Zealand) | McKinnon, Malcolm | New Zealand | Post-war |
| Post-war Economies (Russian Empire) | Heywood, Anthony | Russian Empire | Post-war |
| Post-war Economies (South East Europe) | Innerhofer, Ian | Albania, Bulgaria, Greece, Romania, Serbia, Yugoslavia | Post-war |
| Post-war Military Action and Violence (East Central Europe) | Böhler, Jochen | Austria, Belarus, Estonia, Germany, Hungary, Lithuania, Poland, Ukraine | Post-war, Violence |
| Post-war Societies (Africa) | Nkwi, Walter Gam | East and Central Africa, West Africa | Post-war |
| Post-war Societies (Australia) | Bongiorno, Frank | Australia | Post-war |
| Post-war Societies (East Central Europe) | Górny, Maciej | Belarus, Czechoslovakia, Estonia, Hungary, Latvia, Lithuania, Poland, Ukraine | Post-war |
| Post-war Societies (France) | Demiaux, Victor | France | Post-war |
| Post-war Societies (Germany) | Schumann, Dirk | Germany | Post-war |
| Post-war Societies (Italy) | Baravelli, Andrea | Italy | Post-war |
| Post-war Societies (Russian Empire) | Beyrau, Dietrich | Russian Empire | Post-war |
| Post-war Societies (South East Europe) | Innerhofer, Ian | Albania, Bulgaria, Greece, Montenegro, Serbia, Yugoslavia | Post-war |
| Post-war Societies (Turkey) | Criss, Nur Bilge | Ottoman Empire | Post-war |
| Post-war Welfare Policies | Pironti, Pierluigi | Austria, Czechoslovakia, France, Germany, Great Britain, Italy, USA | Post-war |
| Press/Journalism (Belgium) | Van Den Dungen, Pierre | Belgium | Media |
| Press/Journalism (East Central Europe) | Brudek, Paweł | Estonia, Finland, Latvia, Lithuania, Poland | Media, Pre-war |
| Press/Journalism (France) | Beurier, Joëlle | France | Media |
| Press/Journalism (Germany) | Altenhöner, Florian | Germany | Media |
| Pre-war Military Planning and War Aims (Union of South Africa) | Katz, David Brock | Union of South Africa | Pre-war |
| Pre-war Societies (Ottoman Empire/Middle East) | Dannies, Kate | Ottoman Empire | Pre-war |
| Prisoners of War | Jones, Heather | Austria-Hungary, Bulgaria, France, Germany, Great Britain, Italy, Ottoman Empire, Russian Empire, Serbia | Violence |
| 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 (Australia) | Pegram, Aaron | Australia | Violence |
| Prisoners of War (Belgium and France) | Jones, Heather | Belgium, France | Violence |
| Prisoners of War (Italy) | Gorgolini, Luca | Italy | Violence |
| Prisoners of War (Ottoman Empire/Middle East) | Yanıkdağ, Yücel | Ottoman Empire | Violence |
| Private Life (France) | Vidal-Naquet, Clémentine | France | Home Front |
| Propaganda at Home and Abroad | Demm, Eberhard | Austria, Belgium, France, Germany, Great Britain, Ireland, Italy, Poland, Russian Empire, USA | Media |
| Propaganda at Home (Italy) | Pisa, Beatrice | Italy | Media |
| Propaganda at Home (Russian Empire) | Medyakov, Alexander | Russian Empire | Media |
| Property Rights and Economic Nationalism | Caglioti, Daniela L. | Armenia, Austria-Hungary, France, Germany, Great Britain, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| Prostitution (Ottoman Empire) | Oğuz, Çiğdem | Ottoman Empire | Home Front |
| Recruitment and Conscription (Canada) | Sharpe, Christopher | Canada | Violence |
| Refugees | Gatrell, Peter | Austria-Hungary, Belgium, Bulgaria, France, Germany, Great Britain, Greece, Italy, Latvia, Lithuania, Ottoman Empire, Poland, Russian Empire, Serbia, The Netherlands | Violence |
| Religion (Portugal) | Moura, Maria Lúcia de Brito | Portugal | Home Front, Power, Violence |
| Religion (USA) | Ebel, Jonathan H. | USA | Power, Violence |
| Religious Missionaries and the Colonial State (Indochina) | Keith, Charles | Indochina | Home Front, Power |
| Religious Mobilization and Popular Belief | Houlihan, Patrick J. | Africa, France, Germany, Great Britain, Italy, Palestine, Russian Empire, USA | Home Front |
| Religious Mobilization and Popular Belief (Italy) | Paiano, Maria | Italy | Home Front |
| Resettlement | Gatrell, Peter | Austria-Hungary, Belgium, Bulgaria, France, Germany, Greece, Italy, Latvia, Lithuania, Poland, Romania, Russian Empire, Serbia | Power |
| Resistance and Rebellions (Africa) | Moyd, Michelle | Africa | Power |
| Revolutionary Networks (India) | Singh, Gajendra | India | Power |
| Revolutions | Fulwider, Chad R. | Austria-Hungary, Bulgaria, France, Germany, Greece, Italy, Ottoman Empire, Russian Empire | Power |
| Revolutions (Austria-Hungary) | Leidinger, Hannes | Austria, Hungary | Power |
| Revolutions (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Power |
| Revolutions (Russian Empire) | Read, Christopher | Russian Empire | Power |
| Rural Society | Ermacora, Matteo | Australia, Austria-Hungary, Canada, France, Germany, Great Britain, India, Italy, Russian Empire, USA | Home Front |
| Russian Civil War | Sumpf, Alexandre | Russian Empire | Post-war |
| Russian Empire | Sanborn, Joshua A. | Russian Empire | Home Front, Post-war, Power, Pre-war, Violence |
| Schools and Universities | Donson, Andrew | Canada, France, Germany, Great Britain, Italy, USA | Home Front |
| Science and Technology (Africa) | Page, Melvin E. | East and Central Africa, Northern Africa, Southern Africa, Union of South Africa, West Africa | Home Front |
| Science and Technology (Australia) | Endacott, Eric | Australia | Home Front |
| Science and Technology (Belgium) | Bertrams, Kenneth | Belgium | Home Front |
| Science and Technology (Japan) | Kikuchi, Yoshiyuki | Japan | Home Front |
| Science and Technology (USA) | Heller, Charles E. | USA | Home Front |
| Serbia | Bjelajac, Mile | Serbia | Home Front, Post-war, Power, Pre-war, Violence |
| Sexuality, Sexual Relations, Homosexuality | Crouthamel, Jason | Austria-Hungary, France, Germany, USA | Home Front |
| Shifts and Tensions in Ethnic/National Groups | Chernev, Borislav | Austria-Hungary, Ottoman Empire, Russian Empire | Violence |
| Social Conflict and Control, Protest and Repression (Australia) | Crotty, Martin | Australia | 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 (Italy) | Bianchi, Roberto | Italy | Home Front |
| Social Conflict and Control, Protest and Repression (Russian Empire) | Melancon, Michael S. | Russian Empire | Home Front |
| Social Conflict and Control, Protest and Repression (USA) | Strauss, Lon | USA | Home Front |
| Social Movements (Latin America) | Rinke, Stefan | Argentina, Brazil, Chile, Mexico, Peru, Uruguay | Home Front |
| Soldier Newspapers | Nelson, Robert L. | France, Germany, Great Britain | Media |
| 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 |
| Spain | Ponce, Javier | Spain | Home Front, Media, Post-war, Power, Pre-war, Violence |
| Staging War. Theatre 1914-1918 | Krivanec, Eva | Austria, France, Germany, Great Britain | Home Front, Media |
| State, Civil Society and Relief Organizations for War | Little, Branden | Australia, Austria-Hungary, Belgium, Canada, France, Germany, Great Britain, Italy, Russian Empire, USA | Home Front |
| Subjectivity and Emotions (Great Britain and Ireland) | Meyer, Jessica | Great Britain, Ireland | Home Front |
| Sweden | Qvarnström, Sofi | Sweden | Home Front, Media, Post-war, Power, Pre-war |
| The Churches | Houlihan, Patrick J. | Austria, France, Germany, Great Britain, Ireland, Italy, Ottoman Empire, Russian Empire, USA | Home Front |
| The Church (Spain) | Ruiz Sánchez, José-Leonardo | Spain | Home Front |
| The Everyday as Involved in War | Proctor, Tammy M. | Austria-Hungary, Belgium, Germany, Italy, Poland, Russian Empire, USA | Home Front |
| The Military Collapse of the Central Powers | Tunstall, Graydon A. | Austria, Czechoslovakia, Germany, Hungary, Italy, Ottoman Empire | Violence |
| The Netherlands | Kruizinga, Samuël, Moeyes, Paul and Klinkert, Wim | The Netherlands | Media, Post-war, Power, Pre-war, 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 |
| Urban Societies and Cities | Lees, Andrew | Austria-Hungary, France, Germany, Great Britain, Ottoman Empire, Russian Empire | Home Front |
| Venereal Diseases | Steward, Journey and Wingfield, Nancy M. | Austria-Hungary, France, Germany, Great Britain, Russian Empire, USA | Home Front |
| Veterans' Associations | Eichenberg, Julia | France, Germany, Great Britain, Poland, USA | Post-war |
| Veterans' Associations (Great Britain and Ireland) | Hanna, Emma | Great Britain, Ireland | Home Front, Post-war |
| War Aims and War Aims Discussions (East Central Europe) | Boysen, Jens | Lithuania, Poland | Power |
| Warfare 1914-1918 (Australia) | Westerman, William | Australia | Violence |
| Warfare 1914-1918 (Canada) | Oliver, Dean F. | Canada | Violence |
| Warfare 1914-1918 (Newfoundland) | Baker, Melvin | Newfoundland | Violence |
| Warfare 1914-1918 (New Zealand) | Fox, Aaron Patrick | New Zealand | Violence |
| Warfare 1914-1918 (South East Europe) | Tasić, Dmitar | Albania, Bulgaria, Montenegro, Romania, Serbia | 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 Losses | Prost, Antoine | Austria-Hungary, France, Germany, Great Britain, Ottoman Empire, Poland, Romania, Russian Empire, Serbia, 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 and Reparations (China) | Tang, Chi-hua | China | Violence |
| War Losses (Australia) | Noonan, David C. | Australia | Violence |
| War Losses (Austria-Hungary) | Schmied-Kowarzik, Anatol | Austria, Hungary | Violence |
| War Losses (Belgium) | Majerus, Benoît | Belgium | Violence |
| War Losses (Canada) | Cook, Tim and Stewart, William | Canada | Violence |
| War Losses (France) | Lafon, Alexandre | France | Violence |
| War Losses (Germany) | Whalen, Robert Weldon | Germany | Violence |
| War Losses (Italy) | Scolè, Pierluigi | Italy | Violence |
| War Losses (USA) | Byerly, Carol R. | USA | Violence |
| Wartime and Post-war Economies (Spain) | Sánchez Picón, Andrés and García Gómez, José Joaquín | Spain | Home Front |
| Wartime and Post-war Economies (Switzerland) | Straumann, Tobias | Switzerland | Home Front, Post-war |
| Wartime and Post-war Societies (Spain) | Martorell Linares, Miguel Angel | Spain | Home Front |
| Wartime and Post-war Societies (The Netherlands) | Kristel, Conny | The Netherlands | Home Front |
| Wartime Emotions: Honour, Shame, and the Ecstasy of Sacrifice | Frevert, Ute | Belgium, France, Germany, Great Britain, Russian Empire | Home Front |
| Weapons | Audoin-Rouzeau, Stéphane | France, Germany, Great Britain | Violence |
| West Africa | Njung, George N. | West Africa | Power, Pre-war, 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, Gender, Social Movements (Switzerland) | Joris, Elisabeth | Switzerland | Home Front |
| Women’s Mobilisation for War (Australia) | Frances, Rae | Australia | Home Front |
| Women's Mobilisation for War (Canada) | Glassford, Sarah | Canada | Home Front |
| Women's Mobilisation for War (Germany) | Stibbe, Matthew | Germany | 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 (Belgium) | Gubin, Eliane, Flour, Els and Kympers, Marie | Belgium | Home Front |
| Women's Mobilization for War (France) | Bette, Peggy | France | 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 |
| Women's Mobilization for War (Newfoundland) | Bishop Stirling, Terry | Newfoundland | Home Front |
| Women's Mobilization for War (New Zealand) | Hunter, Kate | New Zealand | Home Front |
| Women's Mobilization for War (Portugal) | Samara, Maria Alice | Portugal | Home Front |
| Women's Mobilization for War (Russian Empire) | Shcherbinin, Pavel Petrovich | Russian Empire | Home Front |
| Women's Mobilization for War (South East Europe) | Mladenović, Božica | Bulgaria, Montenegro, Romania, Serbia | Home Front |
| Women's Mobilization for War (USA) | Jensen, Kimberly | USA | Home Front |
