| Amiens, Battle of | Badsey, Stephen | France | Violence |
| Amphibious Raids on Ostend and Zeebrugge | Karau, Mark D. | Belgium, Germany, Great Britain | Violence |
| Arab Bureau | Seikaly, Samir | Egypt | Power |
| Arditi | Salvante, Martina | Italy | Post-war, Violence |
| Attrition Warfare | Murray, Nicholas | Belgium, France, Germany, Italy | Violence |
| Beersheba-Gaza Line | Çiçek, M. Talha | Egypt, Ottoman Empire, Palestine, Syria | Violence |
| Bernhardi, Friedrich von | Pöhlmann, Markus | Germany | Media, Pre-war |
| Brusilov, Alekseĭ Alekseevich | Volkov, Evgenii Vladimirovich | Russian Empire | Violence |
| Cadorna, Luigi | Grillini, Anna | Italy | Violence |
| Capello, Luigi | Argenio, Andrea | Italy | Violence |
| Conrad von Hötzendorf, Franz Xaver Josef Graf | Reichl-Ham, Claudia | Austria | Pre-war, Violence |
| Drum, Hugh Aloysius | Forney, Andrew J. | USA | Violence |
| Flamethrower | Cornish, Paul | France, Germany, Great Britain, Italy | Violence |
| Force Publique | Pesek, Michael | East and Central Africa | Violence |
| German Spring Offensives 1918 | Watson, Alexander | France, Germany, Great Britain | Violence |
| Hundred Days Offensive | Lloyd, Nicholas | Germany | Violence |
| Infantry | LaMonica, Jeffrey | France, Germany, Great Britain, USA | Violence |
| Ludendorff, Erich | Chickering, Roger | Germany | Post-war, Power, Violence |
| Lys, Battle of the | Meneses, Filipe Ribeiro de | Portugal | Violence |
| MacArthur, Douglas | Salo, Edward | USA | Violence |
| Machine Gun | Cornish, Paul | Austria-Hungary, France, Germany, Great Britain, Italy, Russian Empire, USA | Violence |
| Mitchell, William | Waller, Douglas C. | USA | Violence |
| Operation Alberich | Showalter, Dennis | Germany | Violence |
| Patton, George Smith | Redgraves, Christopher Michael | USA | Violence |
| Petroleum | Gliech, Oliver | Austria-Hungary, Germany, Great Britain, USA | Home Front |
| Reconnaissance and Observation | Dusch, Charles | France, Germany, Great Britain, Russian Empire | Violence |
| Schlieffen, Alfred, Graf von | Stein, Oliver | Germany | Pre-war, Violence |
| Shells Crisis of 1915 | Strachan, Hew | France, Germany, Great Britain, Russian Empire | Home Front |
| Somme, Battles of | Philpott, William | France | Violence |
| Stormtrooper | Raths, Ralf | Austria, France, Germany, Great Britain, Italy | Violence |
| Tanks and Tank Warfare | Kennedy, Michael David | France, Germany, Great Britain, USA | Violence |
| Tannenberg, Battle of | Nagornaja, Oxana Sergeevna | Germany | Violence |
