| Arms Race prior to 1914, Armament Policy | Brose, Eric | France, Germany, Great Britain, Ottoman Empire, Russian Empire | Pre-war |
| Atrocities | Kramer, Alan | Austria, Belgium, France, Germany, Great Britain, Ottoman Empire, Serbia, Ukraine | 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 |
| Burma | Charney, Michael W. | Burma | Home Front, Power, Violence |
| Centenary (Turkey) | Maksudyan, Nazan | Ottoman Empire | Post-war |
| Civilian and Military Power (Germany) | Grawe, Lukas | Germany | Power |
| Civilian and Military Power (Great Britain and Ireland) | Johnson, Matthew | Great Britain and Ireland | Power |
| Domestic Politics and Neutrality (Spain) | Fuentes Codera, Maximiliano | Spain | Power |
| Film/Cinema (Portugal) | Baptista, Tiago | Portugal | Media |
| Food and Nutrition | Cronier, Emmanuelle | Austria-Hungary, Belgium, France, Germany, Great Britain, Italy, Ottoman Empire, USA | Home Front, Violence |
| Foreign Policy (Spain) | Montero Jiménez, José Antonio | Spain | Power |
| Foreign Policy (Sweden) | Åselius, Gunnar | Sweden | Power |
| 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 (Germany) | Oppelland, Torsten | Germany | Power |
| Governments, Parliaments and Parties (Ottoman Empire/Middle East) | Ahmad, Feroz | Ottoman Empire | Power |
| Governments, Parliaments and Parties (USA) | Kennedy, Ross | USA | Power |
| Hong Kong | Kwong, Chi Man | Hong Kong | |
| Intelligence and Espionage (Norway) | Brandal, Nik. and Teige, Ola | Norway | Violence |
| Intelligence and Espionage (Spain) | García Sanz, Carolina | Spain | Violence |
| Italian Front | Wilcox, Vanda | Italy | Violence |
| Latin America | Rinke, Stefan and Kriegesmann, Karina | Argentina, Brazil, Chile, Mexico, Panama, Peru | Home Front, Media, Power, Pre-war, Violence |
| 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 (Norway) | Brazier, Eirik | Norway | Media |
| Making Sense of the War (Spain) | García Sanz, Carolina | Spain | Media |
| Making Sense of the War (USA) | Little, Branden | USA | Media |
| Migration (Norway) | Brazier, Eirik | Norway | Home Front |
| Military and Strategy (Denmark) | Clemmesen, Michael H. | Denmark | Violence |
| Military and Strategy (Spain) | Alcalde, Ángel | Spain | Power |
| 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 |
| Naval Blockade (of Germany) | Kramer, Alan | Germany | Home Front, Power, Violence |
| Naval Warfare | Osborne, Eric W. | Austria-Hungary, Germany, Great Britain, Italy, Ottoman Empire, USA | 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 |
| Norway | Haug, Karl Erik | Norway | Home Front, Media, Power, Violence |
| On the Road to Modern War | Showalter, Dennis | France, Germany, Great Britain, Italy, Japan, Russian Empire, USA | Violence |
| Organization of War Economies | Blum, Matthias, Eloranta, Jari and Osinsky, Pavel | Austria-Hungary, France, Germany, Great Britain, Russian Empire | Home Front |
| Press/Journalism (USA) | Miller, Alisa | USA | Media |
| Pre-war Military Planning | Seligmann, Matthew S. | Austria-Hungary, France, Germany, Great Britain and Ireland | Pre-war |
| Pre-war Military Planning (Great Britain) | Strachan, Hew | Great Britain | Pre-war |
| Raw Materials | Chancerel, Pierre | Austria-Hungary, Brazil, Chile, China, France, Germany, Great Britain, India, Italy, Japan, Mexico, Russian Empire, USA | Home Front |
| Science and Technology | Johnson, Jeffrey | France, Germany, Great Britain, USA | Home Front |
| Science and Technology (Australia) | Endacott, Eric | Australia | Home Front |
| Science and Technology (Austria-Hungary) | Gottsmann, Andreas | Austria-Hungary | Home Front |
| Science and Technology (Germany) | Schwarz, Angela | Germany | Home Front |
| Sea Transport and Supply | Miller B., Michael | France, Germany, Great Britain, India, Italy, Norway, USA | Home Front |
| Spain | Ponce, Javier | Spain | Home Front, Media, 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 (China) | Danner, Lukas K. | China | Power |
| War Aims and War Aims Discussions (Great Britain and Ireland) | Millman, Brock | Great Britain and Ireland | Power |
| War Aims and War Aims Discussions (Japan) | Gates, Rustin | Japan | Power |
| 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 (Japan) | Melzer, Jürgen | Japan | Violence |
| Warfare 1914-1918 (Portugal) | Meneses, Filipe Ribeiro de | Portugal | Violence |
| War Losses (Portugal) | Tavares, João Moreira | Portugal | Violence |
| Wartime and Post-war Economies (Sweden) | Häggqvist, Henric | Sweden | Home Front |
| Wartime and Post-war Economies (The Netherlands) | Klemann, Hein A. M. | The Netherlands | Home Front |
| Wartime and Post-war Societies (Sweden) | Sturfelt, Lina | Sweden | Home Front |
