Subcategories - World War I
- Aleksandr Kolchak
- Aleksei Brusilov
- Alfred von Tirpitz
- Armenians Suffer Genocide During World War I
- Assassination of Peter Stolypin
- Atatürk
- August von Mackensen
- Austria Annexes Bosnia and Herzegovina
- Balkan Wars
- Baron Manfred von Richthofen
- Battle of Baghdad
- Battle of Beersheba
- Battle of Cambrai
- Battle of Caporetto
- Battle of Château-Thierry/Belleau Wood
- Battle of Falkland Islands
- Battle of Gorlice-Tarnow
- Battle of Jutland
- Battle of Marne
- Battle of Masurian Lakes
- Battle of Meuse-Argonne
- Battle of Somme
- Battle of St. Mihiel
- Battle of Tannenberg, 1914
- Battle of Verdun
- Battle of Ypres
- Billy Mitchell
- Count Alfred von Schlieffen
- David Lloyd George
- Dawes Plan
- Demobilization After World War I
- Douglas Haig
- Eddie Rickenbacker
- Edvard Beneš
- Eleven Battles of the Isonzo
- Enver Pasha
- Erich Ludendorff
- Erich Maria Remarque
- Erich von Falkenhayn
- Ernest Swinton
- Espionage and Sedition Acts
- Ferdinand Foch
- First Battle of the Marne
- The First German U-Boat Submarine Is Launched
- Francis Ferdinand
- Gallipoli Campaign
- Georges Clemenceau
- Germany Begins Extensive Submarine Warfare
- Germany Uses Chemical Weapons in World War I
- Giulio Douhet
