The European Powers in the First World War

Abbeville Conference (1–2 May 1918)

Abdullah ibn-Husseln, Emir (1882–1951)

Abruzzl, Amedeo dl Savoia-Aosta (1837–1933)

Abyssinia

Aces

Africa, 1914–18

Air Warfare: Fighter Tactics

Air Warfare: Ground-Support Aviation

Air Warfare: Strategic Bombing

Aircraft, Bombers

Aircraft, Fighters

Aircraft, Production during the War

Aircraft, Spotter and Auxiliary

Aircraft Carriers

Airships

Albania

Alberich, Operation of (Siegfried Line)

Albert I, King of Belgium (1875–1934)

Albrecht, Duke of Württemberg (1865–1939)

Alokseev, Mikhail Vasilevich (1857–1918)

Alexander, Prince (1888–1934)

Alexandra Feodorovna (1872–1918)

Allenby, Edmund Henry Hynman (1861–1936)

Alliances, Prewar

Allied Counteroffensive (18 July to 11 November 1918)

Alpine Warfare

Alsace and Lorraine

Altvater, Vasilij Michaljiovic (1883–1919)

Amphibious Warfare

Andrássy, Count Qyula the Younger (1860–1929)

Angell, Norman (1873–1967)

Animals, Use of

Antiaircraft Weapons

Anzac

Arab Revolt, 1916–18

Armaments Production

Armonia (1914–22)

Armistice, at Complègne (11 November 1918)

Armored Cars

Arnauld da la Perière, Lothar von (1886–1941)

Art during the War

Artillery

Artois, First Battle of (27 September to 10 October 1914)

Artois, Second Battle of (9 May to 18 June 1915)

Artois, Third Battle of (25 September to 16 October 1915)

Arz von Straussenberg, Baron Arthur (1857–1935)

Asdic

Asqutth, Herbert Henry (1852–1928)

Atrocities (1914–19)

Auffenberg-Komarõw, Baron Moritz von (1852–1928)

Augagneur, Jean Victor (1855–1931)

Austria-Hungary, Army, 1914–18

Austria-Hungary, Home Front

Austria-Hungary, Navy, 1914–18

Austro-Hungarian War Plan, 1914

Authors

Averescu, Alexandra (1859–1938)

Avesnes Conference, 13–14 August 1918

Azerbaijan

Bachmann, Gustav (1860–1943)

Bacon, Sir Reginald Hugh Spencer (1863–1947)

Badoglio, Pletro (1871–1956)

Balfour, Arthur James (1848–1930)

Balfour Declaration

Balkan Front, 1914

Balkan Front, 1915

Balkan Front, 1916

Balkan Front, 1917

Balkan Wars, 1912–13

Balloons

Baltic Naval Operations, 1914–18

Baltic States

Beatty, David, 1st Earl (1871–1936)

Belgium, Army, 1914–18

Belgium, Invasion of (August 1914)

Belgium, Neutrality of to 1914

Belgium, Occupation of, 1914–18

Below, Fritz von (1853–1918)

Below, Otto von (1857–1944)

Benedict XV (1854–1922), Pope (1914–22)

Beneš, Edvard (1884–1948)

Berchtold von und zu Ungarschitz, Fratting und Pullitz, Leopold Count von (1863–1942)

Bergson, Henri (1859–1941)

Bernstorff, Count Johann Heinrich von (1862–1939)

Berthelot, Henri Mathias (1861–1931)

Bethmann Hollweg, Theobald von (1856–1921)

Birch, Sir James Frederick Noel (1865–1939)

Birdwood, Lord William Riddell (1865–1951)

Black Hand

Black Sea, Naval War In

Blank Check

Blockade, Naval, of Germany

Boelcke, Oswald (1891–1916)

Bohm-Ermolli, Eduard (1856–1941)

Bonar Law, Andrew (1858–1923)

Borden, Sir Robert Laird (1854–1937)

Boroević von Bojna, Svetozar (1856–1920)

Boselli, Paolo (1838–1932)

Bosnia-Herzegovina

Botha, Louis (1862–1919)

Bothmer, Felix Count von (1852–1937)

Boué de Lapeyrère, Augustin Emmanuel Hubert Gaston (1852–1924)

Bourgeois, Léon Victor Auguste (1851–1925)

Brătianu, Ion (1864–1927)

Brest-Utovsk, Treaty of (3 March 1918)

Briand, Aristide (1862–1932)

Brockdorff-Rantzau, Ulrich Count (1869–1928)

Brooke, Rupert (1887–1915)

Bruchmüller, Georg (1863–1948)

Brusilov, Aleksei Alekseevich (1853–1926)

Brusilov Offensive (4 June to 20 September 1916)

Bucharest, Treaty of (7 May 1918)

Bulgaria

Bulgaria, Army

Bülow, Karl von (1846–1921)

Burian von Rqjecz, Count Stephen (1851–1922)

Byng, Julian Hedworth George (1862–1935)

Cadorna, Luigi (1850–1928)

Caillaux, Joseph (1863–1944)

Calais Conference (26 February 1917)

Calthorpe, Sir Somerset Arthur Gough (1864–1937)

Cambon, Paul (1843–1924)

Cambrai, Battle of (20 Novembor-5 December 1917)

Camouflage

Canada, Army

Canada, Navy

Canada, Role in War

Capelle, Eduard von (1855–1931)

Capello, Luigi Attilo (1859–1941)

Caporetto (Twelfth Battle of the Isonzo), 24 October to 25 December 1917

Carden, Sir Sackvllle Hamilton (1857–1930)

Carrier Pigeons

Casement, Roger (1864–1916)

Castelnau, Noel Joseph Edouard de Curiares de (1851–1944)

Casualties

Caucasus Front, 1914–18

Cavalry

Cavell, Edith (1865–1915)

Censorship

Champagne, First Battle of (December 1914-March 1915)

Champagne, Second Battle of (25 September-3 November 1915)

Charles l, Emperor of Austria

Charteris, John (1877–1946)

Chemical Warfare

China

Chkeidze, Nikolai Semenovich (1864–1926)

Christian X (1870–1947)

Churchill, Winston Spencer Leonard (1874–1965)

Clemenceau, Georges (1841–1929)

Codebreaking

Congress of Oppressed Nationalities

Conrad von Hötzontforf, Count Franz (1852–1925)

Constantino I (1868–1923)

Constantinople Agreements (Istanbul Agreements), 18 March 1915

Convoy System, Naval

Corfu, Declaration of (20 July 1917)

Coronel, Battle of (1 November 1914)

Cradock, Sir Christopher George Francis Maurice (1862–1914)

Currie, Sir Arthur W. (1875–1933)

Czech Legion

Czechs

Czernin, Count Ottokar (1872–1932)

Danilov, Yury Nikiforovich (1866–1937)

Dankl von Krasnik, Viktor (1854–1941)

D'Annunzio, Gabriele (1863–1938)

Dardanelles Campaign

Dartige du Fournet, Louis René Charles (1856–1940)

Daszynski, Ignacy (1866–1936)

De Gaulle, Charles André Marie Joseph (1890–1970)

Delcassé, Théophile (1852–1923)

Denikin, Anton Ivanovich (1872–1947)

Depth Charges

De Robeck, Sir John Michael (1862–1928)

Diaz, Armando (1861–1928)

Dimitrijević, Dragutin (1876–1917)

Djemal Pasha (1872–1922)

Dmitriev, Radko R. (1859–1918)

Dmowski, Roman (1864–1939)

Dobropole, Battle of (September 1918)

Dogger Bank, Naval Battle of (24 January 1915)

Douhet, Giulio (1869–1930)

Doullens Conference (26 March 1918)

Dowbor-Muśnicki, Jōzef (1867–1937)

Dreadnought (HMS)

Dubail, Auguste (1851–1934).

Duchêne, Denis Auguste (1862–1950)

Dukhonin, Nikolai Nikolaevich (1876–1917)

East Galicia, 1914 Campaign

East Galicia, German Counteroffensive (18–28 July 1917)

East Prussia Campaign (August-September 1914)

Eastern Front, January to April 1915

Eastern Front, May to September 1915

Eberhardt, Andrei Augustovich (1856–1919)

Ebert, Friedrich (1871–1925)

Egypt in World War I

Eichhorn, Hermann von (1848–1918)

Einem, Karl von (1853–1934)

Emden (SMS)

Enver Pasha (1881–1922)

Erzberger, Matthias (1875–1921)

Essen, Nikolai von (1860–1915)

Eugen, Archduke (1863–1954)

Evan-Thomas, Sir Hugh (1862–1928)

Evert, Aleksei Ermolaveich (1857–1918?)

Faisal, Prince (1885–1933)

Falkenhayn, Erich Georg Anton Sebastian von (1861–1922)

Falklands, Battle of (8 December 1914)

Fayolle, Marie-Emile (1852–1928)

Ferdinand (1861–1948)

Ferdinand I (1865–1927)

Film and Television and World War I

Finland, Role in War

Fisher, John Arbuthnot, Lord Fisher of Kilverstone (1841–1920)

Flamethrowers

Foch, Ferdinand (1851–1929)

Fokker, Anthony Herman Gerard (1890–1939)

France, Army, 1914–18

France, Colonial Troops

France, Home Front

France, Navy, 1914–18

Franchet d'Esperey, Louis Felix François (1856–1942)

François, Hermann von (1856–1933)

Franz Ferdinand (1863–1914)

Franz Josef I (1830–1916)

French, John Denton Pinkstone, Earl of Ypres (1852–1925)

French 75mm Field Gun

French Army Mutiny, 1917

French War Plan XVII

Friedensturm: Peace Offensive, 15–16 July 1918

Friedrich, Archduke (1856–1936)

Frontiers, Battle of the (August 1914)

Fuller, John Frederick Charles (1878–1966)

Galicia

Gallieni, Joseph Simon (1849–1916)

Gallipoli Campaign

Gallwitz, Max von (1852–1937)

Gauchet, Dominique Marie (1857–1931)

Geddes, Sir Eric Campbell (1875–1937)

George V (1865–1936)

German Armed Merchant Raiders

German Channel Destroyer Raids (1917)

German Cruiser Raids, 1914

German Cruiser Raids, 1916

Germany, Army

Germany, Home Front

Germany, Navy

Germany, Revolution of 1918

Giolitti, Giovanni (1842–1928)

Goeben and Breslau

Goltz, Colmar Freiherr von der (1843–1916)

Goltz, Rüdiger Count von der (1865–1946)

Goremykin, Ivan (1839–1917)

Göring, Hermann Wilhelm (1893–1946)

Gough, Sir Hubert (1870–1963)

Gouraud, Henri Joseph Eugene (1867–1946)

Grandmaison, Louis Loyzeau de (1861–1915)

Great Britain, Army

Great Britain, Home Front

Great Britain, Navy

Greece

Grenades, Hand

Grey, Edward (1862–1933)

Grigorovich, Ivan Konstantinovich (1853–1930)

Groener, Wilhelm (1867–1939)

Guchkov, Aleksandr Ivanovich (1862–1936)

Guépratte, Emile Paul Amable (1856–1939)

Guillaumat, Marie Louis Adolphe (1863–1940)

Haber, Fritz (1868–1934)

Hadik, Count János (1863–1933)

Haig, Sir Douglas (1861–1928)

Haldane, Richard Burdon, Viscount (1856–1928)

Hall, William Reginald (1870–1943)

Haller, Józef (1873–1960)

Hamilton, Ian (1853–1947)

Hankey, Sir Maurice (1877–1963)

Harmsworth, Alfred, Lord Northcliffe (1865–1922)

Haus, Anton (1851–1917)

Helfferich, Karl (1872–1924)

Heligoland Bight, Battle of (28 August 1914)

Henry, Prince of Prussia (1862–1929)

Hentsch, Richard (1869–1918)

Hertling, George Graf von (1843–1919)

Hindenburg, Paul von (1847–1934)

Hintze, Paul von (1864–1941)

Hipper, Admiral Franz Ritter von (1863–1932)

Historiography of the Outbreak of the War

Hitler, Adolf (1889–1945)

Ho Chi Minh (1890–1969)

Hoffmann, Carl Adolf Maximilian (Max) (1869–1927)

Holtzendorf f, Henning von (1853–1919)

Home, Baron Henry Sinclair (1861–1929)

Horthy do Nagybána, Miklós (1868–1957)

Hungary, Revolution in (1918–19)

Hunter-Weston, Sir Aylmer Gould (1864–1940)

Hussein Ibn-Ali (1852–1931)

Hussein, Kamil (1853–1917)

Hutier, Oskar von (1857–1934)

Hymans, Paul (1865–1941)

Ibn Sa'ud, Abd-al-Aziz, of the House of Sa'ud (1880–1953)

India, Role in the War

Infantry Tactics

Influenza Pandemic

Ingenohl, Friedrich von (1857–1933)

Intelligence Operations

Ireland

Isonzo, Battles of, Nos. 1–4 (1915)

Isonzo, Battles of, Nos. 5–9 (1916)

Isonzo, Battles of, Nos. 10 and 11 (1917)

Isonzo, Battles of, No. 12 (24 October to 25 December 1917)

Italy, Army

Italy, Home Front

Italy, Navy

Ivanov, General Nikolai Yudovich (1851–1919)

Izzet Pasha, Ahmed (1864–1937)

Jackson, Sir Henry Bradwardine (1855–1929)

Jagow, Gottlieb von (1863–1935)

Japan, Role in the War

Jaurès, Auguste Marie Joseph Jean (1859–1914)

Jellicoe, John Rushworth, First Earl (1859–1935)

Jewish Legion

Joffre, Joseph Jacques Cósaire (1852–1931)

Josef Augustin, Archduke (1872–1962)

Josef Ferdinand, Archduke of Austria (1872–1942)

Jutland, Battle of

Kamio, Mitsuomi (1856–1927)

Karl I, Emperor of Austria (1887–1922)

Károlyi, Count Mihály (1875–1955)

Kemal, Mustafa (Atatürk) (1881–1938)

Kerensky, Aleksandr Fedorovich (1881–1970)

Kerensky (Second Brusilov) Offensive (1 July 1917)

Keyes, Sir Roger John Brownlow (1872–1945)

Keynes, John Maynard (1883–1946)

Kiel Canal

Kiggell, Sir Launcelot Edward (1862–1954)

Kitchener, Earl Horatio Herbert (1850–1916)

Kluck, Alexander von (1846–1934)

Kolchak, Aleksandr Vasilevich (1874–1920)

Königsberg (SMS)

Korfanty, Wojciech (1873–1939)

Kornilov, Lavr Georgievich (1870–1918)

Kövess von Kövessháza, Baron Hermann (1854–1924)

Krafft von Dellmensingen, Konrad (1862–1953)

Kreuznach Conference, 23 April 1917

Krobatin, Alexander Freiherr von (1849–1933)

Kucharzowski, Jan (1876–1952)

Kühlmann, Richard von (1873–1948)

Kun, Béla (1886–1939)

Kuropatkin, Aleksei (1848–1925)

Lacaze, Marie Jean Lucien (1860–1955)

Lake, Sir Percival (1855–1940)

Lake Naroch, Battle of, March 1916

Langle de Cary, Fernand de (1849–1927)

Lanrezac, Charles Louis Marie (1852–1925)

Latin America, Role in the War

Lausanne, Treaty of (24 July 1923)

Lawrence, Colonel Thomas Edward (1888–1935)

League of Nations, Covenant of

Leman, Gérard (1851–1920)

Lenin, Vladimir llyich (1870–1924)

Lettow-Vorbeck, Paul Emil von (1870–1964)

Levetzow, Magnus von (1871–1939)

Lichnowsky, Count Karl Max (1860–1928)

Liddell Hart, Sir Basil (1895–1970)

Liebknecht, Karl (1871–1919)

Liman von Sanders, Otto (1855–1929)

Linsingen, Alexander von (1850–1935)

Literature: Authors of Disillusionment

Literature: Writers of the First World War

Lloyd George, David (1863–1945)

London, Treaty of (26 April 1915)

Loßberg, Friedrich von (1868–1942)

Ludendorff, Erich (1865–1937)

Ludendorff Offensives, 1918

Ludwig III (1845–1921)

Lusitania, Sinking of

Luxembourg

Luxemburg, Rosa (1871–1919)

Lvov, Prince Georgi (1861–1925)

Lyautey, Louis Hubert Gonzalve (1854–1934)

Machine Guns

Mackensen, August von (1849–1945)

Madden, Sir Charles Edward (1862–1935)

Magdeburg (SMS)

Maistre, Paul (1858–1922)

Mangin, Charles Marie Emmanuel (1866–1925)

Mannerheim, Carl Gustav (1867–1951)

Marne, First Battle of (5–10 September 1914)

Marshall, Sir William Raine (1865–1939)

Marwitz, Georg von der (1856–1929)

Masaryk, Tomáš Garrigue (1850–1937)

Mata Hari (1876–1917)

Maude, Sir Frederick Stanley (1864–1917)

Maud'huy, Louis Ernest do (1857–1921)

Maunoury, Michel Joseph (1847–1923)

Max of Baden, Prince (1867–1929)

Maxse, Sir Frederick Ivor (1862–1958)

Maxwell, Sir John Grenfell (1859–1929)

Medals and Decorations

Medicine, Military

Mediterranean Naval Operations, 1914–18

Mehmed V, Sultan (Mehmed Reşad) (1844–1918)

Mehmed VI, Sultan (Vahdeddin) (1861–1926)

Mesopotamia, 1914–18

Messines, Battle of (7–14 June 1917)

Metaxas, John (1871–1941)

Mexico, Role in the War

Michael, Grand Duke (1878–1918)

Michaelis, Georg (1857–1936)

Michel, Victor (1850–1937)

Micheler, Joseph Alfred (1861–1931)

Miliukov, Pavel Nikolaovich (1859–1943)

Millerand, Alexandre (1859–1943)

Milne, Sir Archibald Berkeley (1855–1938)

Milne, Baron George Francis (1866–1948)

Milner, Alfred, Viscount (1854–1925)

Mine Warfare, Sea

Mines, Sea

Mišić, Živojin (1855–1921)

Mitteleuropa

Moltke, Graf Helmuth Johannes Ludwig von (1848–1916)

Monash, Sir John (1865–1931)

Monro, Sir Charles Carmichael (1860–1929)

Montenegro

Mountbatten, Louis (von Battenberg) (1854–1921)

Müller, Georg Alexander von (1854–1940)

Murray, Sir Archibald James (1860–1945)

Music in the War

Mussolini, Benito Amilcare Andrea (1883–1945)

Naroch, Lake, Battle of (March 1916)

Naval Arms Race, Anglo-German

Netherlands

Neuilly, Treaty of (27 November 1919)

Neuve Chapelle, Battle of (March 1915)

New Zealand

Nicholas II (1868–1918)

Nikola (1841–1921)

Nikolai Nikolaevich (1856–1929)

Nivelle (Chemin des Dames) Offensive (April–May 1917)

Nivelle, Robert (1856–1924)

Nixon, Sir John (1857–1921)

Njegovan, Maximilian (1858–1930)

Nosko, Gustav (1868–1946)

Origins of the First World War

Orlando, Vittorio E. (1860–1952)

Ostend and Zeebrugge, Raids of (1918)

Ottoman Empire

Ottoman Empire, Army

Ottoman Empire, Navy

Ottoman Empire: The Turkish Revolution

Outbreak of the First World War

Paderewski, Ignacy Jan (1860–1941)

Painlevé, Paul (1863–1933)

Palestine and Syria, 1914–18

Paléologue, Georges Maurice (1859–1944)

Paris Gun

Paris Peace Conference, 1919

Pašić, Nikola (1845–1926)

Passchendaele (Ypres, Third Battle of), 31 July to 10 November 1917

Pau, Paul Marie César Gerald (1848–1932)

Peace Overtures during the War

Persian Front, 1914–1918

Pétain, Henri-Philippe (1856–1951)

Peter (I) Karadjordjević, King (1844–1921)

Pflanzer-Baltin, Karl Freiherr von (1855–1925)

Piłsudski, Jósef Klemens (1867–1935)

Pistols

Plumer, Viscount Herbert Charles Onslow (1857–1932)

Pohl, Hugo von (1855–1916)

Poincaré, Raymond (1860–1934)

Poland

Poland: German Offensive of September–November 1914

Polivanov, Aleksei Andreevich (1855–1920)

Portugal

Potiorek, Oskar (1853–1933)

Prezan, Constantino (1861–1943)

Princip, Gavrilo (1894–1918)

Prisoners of War

Prittwitz und Gaffron, Max von (1848–1917)

Propaganda, Use in War

Pulkowski, Erich (1877-?)

Putnik, Radomir (1847–1917)

Qingdao (Tsingtao), Siege of (23 August–7 November 1914)

Q-Ships

Race to the Sea, 1914

Radio

Radoslavov, Vasil (1854–1929)

Rasputin, Grigorii Effimovich (1872–1916)

Rathenau, Walther (1867–1922)

Rawlinson, Sir Henry (1864–1925)

Red Cross

Reichstag Peace Resolution of 1917

Rennenkampf, Pavel Karlovich (1854–1918)

Reuter, Ludwig von (1869–1943)

Ribot, Alexandre (1842–1923)

Richthofen, Manfred Albrecht von (1892–1918)

Rifles

Riga, Battle of (1–3 September 1917)

Robertson, Sir William “Wully” (1860–1933)

Romania

Romanian Campaign, 1916

Rommel, Erwin (1891–1944)

Ronarc'h, Pierre (1865–1940)

Room 40

Roques, Pierre Auguste (1856–1920)

Rupprecht, Crown Prince of Bavaria (1869–1955)

Russia, Allied Intervention in

Russia, Army

Russia, Civil War in

Russia, Home Front and Revolutions of 1917

Russia, Navy

Ruzsky, Nikolai Vladimirovich (1854–1918)

Salandra, Antonio (1853–1931)

Salonika Campaign, 1915

Samson, Charles Rumney (1883–1931)

Samsonov, Aleksandr Vasilevich (1859–1914)

Sarrail, Maurice (1856–1929)

Sazonov, Sergei Dmitrievich (1860–1927)

Scandinavia: Denmark, Norway, and Sweden

Sweden

Scapa now, Scuttling of German Fleet (21 June 1919)

Scheer, Reinhard (1863–1928)

Scheidemann, Philipp (1865–1939)

Schlieffen, Count Alfred von (1833–1913)

Schlieffen Plan

Seeckt, Hans von (1866–1936)

Senussi and Sultan of Darfur Rebellions

Serbia, Role in the War

Sèvres, Treaty of (August 10,1920)

Shcherbachev, Dmitry Grigorevich (1857–1932)

Ships, Auxiliary

Shuvaev, Dmitry Savelevich (1854–1937)

Siegfried Line

Sinai Campaign

Sixte, Prince of Bourbon-Parma (1886–1934)

Skoropadsky, Pavlo P. (1873–1945)

Slovaks

Śmigły-Rydz, Edward (1886–1941)

Smith-Dorrien, Sir Horace Lockwood (1858–1930)

Smuts, Jan Christiaan (1870–1950)

Somalia, War in

Somme, Battle of (1 July–19 November 1916)

Sonnino, Baron Giorgio Sidney (1847–1922)

Souchon, Wilhelm (1864–1946)

South Africa, Union of

South Africans in Europe

South Pacific

Spain

Spee, Maximilian Johannes Maria Hubert Graf von (1861–1914)

Stab-in-the-Back Myth (Dolchstoss)

Stalin, Joseph (1879–1953)

Stein, Hermann von (1854–1927)

St. Germain, Treaty of (10 September 1919)

Stockholm Conference

Stormtroopers

Sturdee, Sir (Frederick) Doverton (1859–1925)

Stürgkh, Count Karl (1859–1916)

Sturmer, Boris Vladimirovich (1848–1917)

Submarines

Submarine Warfare, Allied Powers

Submarine Warfare, Central Powers

Sueter, Sir Murray Fraser (1872–1960)

Sukhomlinov, Vladimir Aleksandrovich (1848–1926)

Supreme War Council

Swinton, Sir Ernest Dunlop (1868–1951)

Switzerland

Sykes-Picot Agreement

Talât Pasha, Mehmed (1874–1921)

Tank Warfare

Tanks

Tardieu, André (1876–1945)

Thaon di Revel, Paolo (1859–1948)

Tirpitz, Alfred von (1849–1930)

Tisza, Count István (1861–1918)

Townshend, Sir Charles Vere Ferrers (1861–1924)

Transylvania

Trench Warfare

Trenchard, Hugh Montague (1873–1956)

Trentino Offensive (15–30 May 1916)

Trianon, Treaty of (4 June 1920)

Trotha, Adolf von (1868–1940)

Trotsky, Leon (1879–1940)

Troubridge, Sir Ernest Charles Thomas (1862–1926)

Truck Transport

Trumbić, Ante (1864–1938)

Tsingtao, Siege of (23 August-7 November 1914)

Tunneling and Mine Warfare

Tyrwhitt, Reginald Yorke (1870–1951)

Ukraine

Uniacke, Sir Herbert C.C. (1866–1934)

Uniforms

Van Deventer, General Louis Jacob “Japie” (1874–1922)

Venizelos, Eleutherios (1864–1936)

Verdun, Battle of (1916)

Versailles Treaty (28 June 1919)

Veterinary Medicine

Victor Emmanuel III (1869–1947)

Vimy Ridge (9 April 1917)

Vittorio Veneto Campaign, 1918

Viviani, René (1862–1925)

War Aims

Warships: Aircraft Carriers

Warships: Battle Cruisers

Warships: Battleships

Warships: Cruisers

Warships: Destroyers

Wemyss, Rosslyn Erskine, Baron Wester (1864–1933)

Wetzell, Georg (1869–1947)

Weygand, Maxime (1867–1965)

Wilhelm, Crown Prince (1882–1951)

Wilhelm II, German Kaiser (1859–1941)

Wilson, Sir Henry (1864–1922)

Wireless (Radio) Communications

Witos, Wincenty (1874–1945)

Woëvre Battle (St. Mihiel Salient), April 1915

Women in the War

Writers

Yanushkevich, Nikolai Nikolaevich (1668–1918)

Ypres, First Battle of (13 October-22 November 1914)

Ypres, Second Battle of (22 April-25 May 1915)

Ypres, Third Battle of

Yudenich, Nikolai Nikolaevich (1862–1933)

Yugoslavia, Creation of

Zaionchkovsky, Andrei Medardovich (1862–1926)

Zeebrugge, Raid of, 1918

Zeppelins

Zhekov, Nikola Todorov (1864–1949)

Zhilinsky, Yakov Grigorevich (1853-c. 1920)