| Afghanistan | Beattie, Hugh | Afghanistan | Home Front, Post-war, Power |
| African Labour in Europe (Africa) | Fogarty, Richard | East and Central Africa, Egypt, Northern Africa, Union of South Africa, West Africa | Home Front, Power |
| Afrikaner (Boer) Rebellion (Union of South Africa) | Wessels, André | Union of South Africa | 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 |
| 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 (Portugal) | Lapa, Pedro | Portugal | Media |
| Australia | Beaumont, Joan | Australia | Home Front, Post-war, Power, Pre-war, 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 |
| Bereavement and Mourning (Ottoman Empire/ Middle East) | Unwalla, Pheroze | Ottoman Empire | Home Front |
| Bereavement and Mourning (USA) | Hulver, Richard Allen | USA | Home Front |
| 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 (Belgium) | Spijkerman, Rose | Belgium | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Canada) | Smith, Nathan | Canada | Violence |
| Between Acceptance and Refusal - Soldiers' Attitudes Towards War (Russian Empire) | Astashov, Aleksandr Borisovich | Russian Empire | Violence |
| Bulgaria | Hall, Richard C. | Bulgaria | Home Front, Post-war, Power, Pre-war, Violence |
| Burgfrieden/Union sacrée | Krumeich, Gerd | France, Germany | Power |
| Canada | Granatstein, J. L. | Canada | Home Front, Post-war, Pre-war, Violence |
| Censorship | Demm, Eberhard | Austria-Hungary, France, Germany, Great Britain, Italy, Russian Empire | Media |
| Centenary (Armenia) | Adjemian, Boris | Armenia | Post-war |
| Centenary (Australia) | Scates, Bruce | Australia | Post-war |
| Centenary (Belarus) | Zamoiski, Andrei | Belarus | Post-war |
| Centenary (Canada) | Bird, Geoffrey | Canada, Western Europe | Post-war |
| Centenary (Germany) | Pöhlmann, Markus | Germany | Post-war |
| Centenary (Italy) | Bracco, Barbara | Italy | Post-war |
| Centenary (New Zealand) | Phillips, Jock and Baird, Kingsley | New Zealand | Post-war |
| Centenary (Russia) | Nagornaja, Oxana Sergeevna | Russian Empire | Post-war |
| Centenary (South Africa) | Nasson, Bill | Southern Africa, Union of South Africa | Post-war |
| Centenary (Thailand) | Ruangsilp, Bhawan and Buadaeng, Din | Siam | Post-war |
| Centenary (Turkey) | Maksudyan, Nazan | Ottoman Empire | Post-war |
| Centenary (Ukraine) | Yurchuk, Yuliya | Ukraine | Post-war |
| 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 (China) | Wu, Lin-Chun | China | Power |
| Civilian and Military Power (France) | Bourlet, Michaël | France | Power |
| Civilian and Military Power (Germany) | Grawe, Lukas | Germany | Power |
| Civilian and Military Power (Great Britain and Ireland) | Johnson, Matthew | Great Britain and Ireland | Power |
| Civilian and Military Power (Italy) | Mondini, Marco | Italy | 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 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 (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Power, Violence |
| Civil-Military Relations during World War I (Russian Empire) | Porshneva, Olga | Russian Empire | Power, Violence |
| Colonial State Power and Politics (Africa) | Pesek, Michael | Africa | Power |
| Colonies (Italy) | Berhe, Simona | Italy | Power |
| Commemoration and Cult of the Fallen (Canada) | Vance, Jonathan F. | Canada | Post-war |
| Commemoration, Cult of the Fallen | Tison, Stéphane | Australia, Austria, Belgium, Canada, Czechoslovakia, France, Germany, Great Britain and Ireland, India, Italy, New Zealand, Newfoundland, Russian Empire, Serbia, USA, West Africa, Yugoslavia | Post-war |
| Commemoration, Cult of the Fallen (India) | Chhina, Rana and Chhina, Adil | India | Post-war |
| Commemoration, Cult of the Fallen (Newfoundland) | Cadigan, Sean T. | Newfoundland | Post-war, Violence |
| 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 |
| Crumbling of Empires and Emerging States: Czechoslovakia and Yugoslavia as (Multi)national Countries | Boeckh, Katrin | Czechoslovakia, Yugoslavia | Power |
| Domestic Politics and Neutrality (Denmark) | Christiansen, Niels Finn | Denmark | Power |
| Domestic Politics and Neutrality (Norway) | Brazier, Eirik | Norway | Power |
| Domestic Politics and Neutrality (Spain) | Fuentes Codera, Maximiliano | Spain | Power |
| Domestic Politics and Neutrality (Sweden) | Hedén, Anne | Sweden | Power |
| Domestic Politics and Neutrality (Switzerland) | Moos, Carlo | Switzerland | Power |
| Domestic Politics and Neutrality (The Netherlands) | Onderwater, Pauline | The Netherlands | 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 |
| Drugs | Kamieński, Łukasz | Austria-Hungary, Canada, France, Germany, Great Britain, Ottoman Empire, Russian Empire, USA | Violence |
| Easter Rising (Great Britain and Ireland) | McGarry, Fearghal | Great Britain, Ireland | Power |
| Espionage | Debruyne, Emmanuel | Austria-Hungary, Belgium, France, Germany, Great Britain, Ireland, Italy, Russian Empire, Serbia, The Netherlands, USA | Violence |
| Exile and Migration (Spain) | Cordero Olivero, Inmaculada | Spain | Home Front |
| Exile and Migration (Sweden) | Kvist Geverts, Karin | Sweden | Home Front |
| Exile and Migration (The Netherlands) | Schrover, Marlou | The Netherlands | Home Front |
| Fascism and the Radical Right | Corni, Gustavo | Germany, Italy | Post-war |
| Film/Cinema (East Central Europe) | Pryt, Karina | Poland | Media |
| Film/Cinema (Ottoman Empire) | Çeliktemel-Thomen, Özde | Ottoman Empire | Media |
| Film/Cinema (Spain) | Sánchez-Salas, Daniel | Spain | Media |
| Film/Cinema (The Netherlands) | Zwaan, Klaas de | The Netherlands | Media |
| Film/Cinema (USA) | DeBauche, Leslie Midkiff | USA | Media |
| Food and Nutrition | Cronier, Emmanuelle | Austria-Hungary, Belgium, France, Germany, Great Britain, Italy, Ottoman Empire, USA | Home Front, Violence |
| Food and Nutrition (Australia) | Smart, Judith | Australia | Home Front |
| Food and Nutrition (Austria-Hungary) | Langthaler, Ernst | Austria, Hungary | Home Front |
| Food and Nutrition (Italy) | Dentoni, Maria Concetta | Italy | Home Front |
| Food and Nutrition (Portugal) | Rollo, Maria Fernanda and Pires, Ana Paula | Portugal | Home Front |
| Food and Nutrition (Russian Empire) | Golubinov, Iaroslav | Russian Empire | Home Front |
| Foreign Policy (Spain) | Montero Jiménez, José Antonio | Spain | Power |
| Foreign Policy (Sweden) | Åselius, Gunnar | Sweden | Power |
| 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 |
| German versus US Intelligence in Latin America | Bisher, Jamie | Brazil, Chile, Mexico | 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 (Australia) | Connor, John | Australia | 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 (France) | Bock, Fabienne | France | Power |
| Governments, Parliaments and Parties (Germany) | Oppelland, Torsten | Germany | Power |
| Governments, Parliaments and Parties (Great Britain and Ireland) | Johnson, Matthew | Great Britain, Ireland | Power |
| Governments-Parliaments and Parties (Hungary) | Joó, András | Hungary | Power |
| Governments, Parliaments and Parties (Italy) | Papadia, Elena | Italy | 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 |
| Governments, Parliaments and Parties (Ottoman Empire/Middle East) | Ahmad, Feroz | Ottoman Empire | Power |
| Governments, Parliaments and Parties; Political Movements and Protostate Formation (East Central Europe) | Richter, Klaus and Szlanta, Piotr | Estonia, Latvia, Lithuania, Poland | Power |
| Governments, Parliaments and Parties (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Power |
| Governments, Parliaments and Parties (Russian Empire) | Gaida, Fedor Aleksandrovich | Russian Empire | Power |
| Governments, Parliaments and Parties (USA) | Kennedy, Ross | USA | Power |
| Great Britain | Badsey, Stephen | Great Britain | Home Front, Media, Post-war, Power, Violence |
| Greece | Hassiotis, Loukianos | Greece | Media, Power, Pre-war, Violence |
| Historiography 1918-Today (France) | Tison, Stéphane | France | Post-war |
| Historiography 1918-Today (Italy) | Labanca, Nicola | Italy | Post-war |
| Historiography 1918-Today (USA) | Price, James S. | USA | Post-war |
| Hong Kong | Kwong, Chi Man | Hong Kong | |
| Humanitarianism (Denmark) | Sørensen, Nils Arne | Denmark | Home Front |
| Humanitarianism (Spain) | Fuentes Codera, Maximiliano | Spain | Home Front |
| Indigenous Experience of War (British Dominions) | Riseman, Noah and Winegard, Timothy C. | Australia, Canada, New Zealand, Newfoundland, Union of South Africa | Violence |
| Indigenous Experiences of War (USA) | Voigt, Matthias | USA | Violence |
| Intelligence and Espionage (Denmark) | Bruhn, Kristian | Denmark | Violence |
| Intelligence and Espionage (Spain) | García Sanz, Carolina | Spain | Violence |
| Intelligence and Espionage (Sweden) | Agrell, Wilhelm | Sweden | Violence |
| Intelligence and Espionage (The Netherlands) | Klinkert, Wim | The Netherlands | Violence |
| 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 |
| July Crisis 1914 | Mombauer, Annika | Austria-Hungary, France, Germany, Great Britain, Russian Empire, Serbia | Pre-war |
| Labor (Germany) | Welskopp, Thomas | Germany | 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 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 (Australia) | Wise, Nathan | Australia | Home Front |
| Labour Movements, Trade Unions and Strikes (Canada) | St. Croix, Brad | Canada | Home Front |
| Labour Movements, Trade Unions and Strikes (Portugal) | Dias Pereira, Joana | Portugal | Home Front |
| Labour Movements, Trade Unions and Strikes (USA) | Taillon, Paul Michel | USA | Home Front |
| Labour (Portugal) | Azevedo, Ana Carina Gerardo da Silva | Portugal | Home Front |
| Latin America | Rinke, Stefan and Kriegesmann, Karina | Argentina, Brazil, Chile, Mexico, Panama, Peru | Home Front, Media, Power, Pre-war, Violence |
| Literature (Africa) | Orosz, Kenneth J. | Africa | Media |
| Literature (Ottoman Empire) | Adak, Hülya | Ottoman Empire | Media |
| Luxembourg | Majerus, Benoît and Roemer, Charel | Luxembourg | Home Front, Post-war, Power, Violence |
| Making Sense of the War (Australia) | Ziino, Bart | Australia | Media |
| Making Sense of the War (Denmark) | Bendtsen, Bjarne Søndergaard | Denmark | Media |
| 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 |
| Making Sense of the War (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Media |
| Making Sense of the War (Spain) | García Sanz, Carolina | Spain | Media |
| Making Sense of the War (Sweden) | Hedén, Anne | Sweden | Media |
| Making Sense of the War (USA) | Little, Branden | USA | Media |
| Maps, Geography and the Representation of Space | Schneider, Ute | Belgium, France, Germany, Great Britain | Media |
| Migration (Norway) | Brazier, Eirik | Norway | Home Front |
| Militarism | Melby, Christian K. | Germany, Great Britain and Ireland, Italy, Japan, Russian Empire | Pre-war |
| Military and Strategy (Denmark) | Clemmesen, Michael H. | Denmark | Violence |
| Military and Strategy (Spain) | Alcalde, Ángel | Spain | Power |
| Military and Strategy (Sweden) | Åselius, Gunnar | Sweden | Violence |
| Military and Strategy (The Netherlands) | Klinkert, Wim | The Netherlands | Violence |
| Military Planning and Wartime Recruitment (India) | Omissi, David | India | Violence |
| 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 (Portugal) | Correia, Silvia | Portugal | Post-war |
| Museums | Wellington, Jennifer, Cohen, Aaron, Hertzog, Anne and Brandt, Susanne | Australia, Canada, France, Germany, Great Britain, New Zealand, Russian Empire | Post-war |
| Music (Portugal) | Félix, Pedro | Portugal | Media |
| Nationalism | Newman, John Paul | Austria-Hungary, Bulgaria, France, Germany, Greece, Italy, Ottoman Empire, Romania, Serbia | Pre-war |
| Nationalities (Austria-Hungary) | Stergar, Rok | Austria-Hungary | Home Front |
| Naval Blockade (of Germany) | Kramer, Alan | Germany | Home Front, Power, Violence |
| Negotiating and Mediating Conduct of War | Stibbe, Matthew | Austria-Hungary, Belgium, China, East and Central Africa, France, Germany, Great Britain, Italy, Japan, Northern Africa, Ottoman Empire, Russian Empire, Spain, Sweden, Switzerland, The Netherlands, USA, West Africa | Violence |
| Newfoundland | Hiller, James K. and O'Brien, Mike | Newfoundland | Home Front, Power, 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 (China) | Danner, Lukas K. | China | 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 (Italy) | Ermacora, Matteo | Italy | Post-war, Power |
| Occupation during and after the War (Ottoman Empire) | Criss, Nur Bilge | Ottoman Empire | Post-war, Power |
| Organization of War Economies and War Finance (South East Europe) | Rafailović, Jelena | South East Europe | Home Front |
| Organization of War Economies (Ottoman Empire/Middle East) | Pitts, Graham | Ottoman Empire | Home Front |
| Organization of War Economies (USA) | Cornelius Smith, Erika | USA | Home Front |
| Persia/Iran | Atabaki, Touraj | Persia/Iran | Home Front, Post-war, Power, Violence |
| Poland | Szlanta, Piotr | Poland | 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 Conflict (Great Britain and Ireland) | Leeson, D. M. | Great Britain, Ireland | Post-war |
| Post-war Economies (Australia) | Bongiorno, Frank | Australia | 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 (Middle East) | Schewe, Eric | Middle East | Post-war |
| Post-war Political Consequences (Portugal) | Samara, Maria Alice | Portugal | Post-war |
| Post-war Societies (Belgium) | Kesteloot, Chantal | Belgium | Post-war |
| Post-war Societies (Czechoslovakia) | Konrád, Ota | Czechoslovakia | Post-war |
| Post-war Societies (Great Britain and Ireland) | Beaumont, Caitríona | Great Britain and Ireland | Post-war |
| Post-war Societies (India) | Sarkar, Sumit | India | Post-war |
| Post-war Societies (Italy) | Baravelli, Andrea | Italy | Post-war |
| Post-war Societies (Turkey) | Criss, Nur Bilge | Ottoman Empire | Post-war |
| Post-war Turmoil and Violence (Hungary) | Révész, Tamás | Hungary | Post-war |
| Post-war Turmoil and Violence (Yugoslavia) | Bozanich, Stevan | Yugoslavia | Post-war |
| Press Censorship (Portugal) | Novais, Noémia Malva | Portugal | Media |
| Press/Journalism (Australia) | Trembath, Richard | Australia | Media |
| Press/Journalism (Great Britain and Ireland) | Monger, David | Great Britain, Ireland | Media |
| Press/Journalism (India) | Jarboe, Andrew Tait | India | Media |
| Press/Journalism (Middle East) | Grams, Benan | Ottoman Empire | Media |
| Press/Journalism (Ottoman Empire) | Enacar, Ekin | Ottoman Empire | Media |
| Press/Journalism (Russian Empire) | Zhdanova, Irina | Russian Empire | Media |
| Pre-war Military Planning | Seligmann, Matthew S. | Austria-Hungary, France, Germany, Great Britain and Ireland | Pre-war |
| Pre-war Military Planning (Australia) | Wilcox, Craig | Australia | Pre-war |
| Pre-war Military Planning (Canada) | Wood, James A. | Canada | Pre-war |
| Pre-war Military Planning (Germany) | Stein, Oliver | Germany | Pre-war |
| Pre-war Military Planning (Great Britain) | Strachan, Hew | Great Britain | Pre-war |
| Pre-war Paramilitary Mobilisation (Great Britain and Ireland) | Stover, Justin Dolan | Great Britain, Ireland | Pre-war |
| 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 | Violence |
| Private Life (France) | Vidal-Naquet, Clémentine | France | Home Front |
| Propaganda at Home and in Exile (South East Europe) | Foster, Samuel | Bulgaria, Greece, Montenegro, Romania, Serbia, Yugoslavia | Media |
| Propaganda at Home (Austria-Hungary) | Cornwall, Mark | Austria-Hungary | Media |
| Propaganda at Home (Great Britain and Ireland) | Monger, David | Great Britain, Ireland | Media |
| Propaganda at Home (Italy) | Pisa, Beatrice | Italy | Media |
| Propaganda at Home (Ottoman Empire) | Dölek-Sever, Deniz | Ottoman Empire | Media |
| Propaganda at Home (Portugal) | Novais, Noémia Malva | Portugal | Media |
| Propaganda at Home (Russian Empire) | Medyakov, Alexander | Russian Empire | Media |
| Propaganda (China) | Steen, Andreas | China | 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 |
| Raw Materials | Chancerel, Pierre | Austria-Hungary, Brazil, Chile, China, France, Germany, Great Britain, India, Italy, Japan, Mexico, Russian Empire, USA | Home Front |
| Recruitment and Conscription (Canada) | Sharpe, Christopher | Canada | Violence |
| Refugees (Italy) | Frizzera, Francesco | Italy | Violence |
| Responses to the War (India) | Das, Santanu | India | Home Front |
| 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 | Power |
| Revolutions (Germany) | Gallus, Alexander | Germany | Power |
| Revolutions (Portugal) | Meneses, Filipe Ribeiro de | Portugal | 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 |
| Science and Technology (Japan) | Kikuchi, Yoshiyuki | Japan | Home Front |
| Science and Technology (Ottoman Empire/Middle East) | Williams, Elizabeth | Ottoman Empire | Home Front |
| Serbia | Bjelajac, Mile | Serbia | Home Front, Post-war, Power, Pre-war, Violence |
| Siam | Hell, Stefan | Siam | Home Front, Post-war, Power, 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 (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 (Great Britain and Ireland) | Bibbings, Lois | Great Britain, Ireland | Home Front |
| Social Conflict and Control, Protest and Repression (Indochina) | Morlat, Patrice | Indochina | Home Front |
| Social Conflict and Control, Protest and Repression (New Zealand) | Grant, David | New Zealand | Home Front |
| Social Conflict and Control, Protest and Repression (Portugal) | Dias Pereira, Joana | Portugal | 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 |
| South Africa and the German East Africa Campaign (Union of South Africa) | Samson, Anne | Union of South Africa | Violence |
| South African Troops in Europe and the Middle East (Union of South Africa) | Delport, Anri | Union of South Africa | Violence |
| Spain | Ponce, Javier | Spain | Home Front, Media, Post-war, Power, Pre-war, Violence |
| Switzerland | Tanner, Jakob | Switzerland | Home Front, Media, Power |
| Tactics, Army (Austria-Hungary) | Ortner, M. Christian | Austria-Hungary | Violence |
| Taiwan | Dawley, Evan | Taiwan | Power |
| Teskilat-i Mahsusa (Ottoman Empire) | Moreau, Odile | Ottoman Empire | Power |
| The Church (Spain) | Ruiz Sánchez, José-Leonardo | Spain | Home Front |
| The Home Front (Newfoundland) | Bishop Stirling, Terry | Newfoundland | Home Front |
| The Internment of Russophiles in Austria-Hungary | Choliy, Serhiy | Austria-Hungary | Violence |
| 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 |
| War Aims and War Aims Discussions (Austria-Hungary) | Williamson, Jr., Samuel R. | Austria, Hungary | Power |
| War Aims and War Aims Discussions (Belgium) | van Tuyll, Hubert | Belgium | Power |
| War Aims and War Aims Discussions (China) | Danner, Lukas K. | China | Power |
| War Aims and War Aims Discussions (France) | Tison, Stéphane | France | Power |
| War Aims and War Aims Discussions (Germany) | Löffelbein, Nils | Germany | Power |
| War Aims and War Aims Discussions (Great Britain and Ireland) | Millman, Brock | Great Britain and Ireland | Power |
| War Aims and War Aims Discussions (Italy) | Baravelli, Andrea | Italy | Power |
| War Aims and War Aims Discussions (Japan) | Gates, Rustin | Japan | Power |
| War Aims and War Aims Discussions (Ottoman Empire) | Yasamee, Feroze | Ottoman Empire | Power |
| War Aims and War Aims Discussions (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Power |
| War Aims and War Aims Discussions (South East Europe) | Bjelajac, Mile | Albania, Bulgaria, Greece, Montenegro, Romania, Serbia, Yugoslavia | Power |
| Warfare 1914-1918 (Canada) | Oliver, Dean F. | Canada | Violence |
| Warfare 1914-1918 (Japan) | Melzer, Jürgen | Japan | Violence |
| War Finance and Monetary Consequences: The German Case Revisited | Hardach, Gerd | Germany | Home Front, Post-war, Pre-war |
| War Finance (Ottoman Empire) | Ozavci, Ozan | Ottoman Empire | Home Front |
| War in the Balkans | Hall, Richard C. | Albania, Bulgaria, Greece, Montenegro, Ottoman Empire, Romania, Serbia | Violence |
| Wartime and Post-war Economies (Denmark) | Pedersen, Jan | Denmark | Home Front |
| Wartime and Post-war Economies (Japan) | Schiltz, Michael | Japan | Home Front, Post-war |
| Wartime and Post-war Economies (Spain) | Sánchez Picón, Andrés and García Gómez, José Joaquín | Spain | Home Front |
| Wartime and Post-war Economies (Sweden) | Häggqvist, Henric | Sweden | Home Front |
| Wartime and Post-war Economies (Switzerland) | Straumann, Tobias | Switzerland | Home Front, Post-war |
| Wartime and Post-war Societies (Denmark) | Østergaard Schultz, Annette | Denmark | Home Front |
| Wartime and Post-war Societies (Spain) | Martorell Linares, Miguel Angel | Spain | Home Front |
| Wartime and Post-war Societies (Sweden) | Sturfelt, Lina | Sweden | Home Front |
| 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 Mobilisation for War (Germany) | Stibbe, Matthew | Germany | Home Front |
| Women's Mobilization for War (Russian Empire) | Laurie, Stoff | Russian Empire | Home Front, Violence |
| Yugoslavia | Trgovčević, Ljubinka | Yugoslavia | Post-war, Power, Pre-war, Violence |
