World war 1915 Timeline

This timeline covers all the political and military events that occurred across Europe and the rest of the world during 1915. This is the year that see's unrestricted sinking of ships by German U-Boats and the defeat of British forces at Gallipoli.

01/01/1915 Allied offensive in Artois and Champagne begins. 15/01/1915 Japan's makes 21 demands on China. 19/01/1915 First German zeppelin air raid on England. 04/02/1915 Germany declares a submarine blockade of Great Britain. Any ship approaching England is considered a legitimate target. 07/02/1915 Second Battle of Masurian Lakes begins. 19/02/1915 British naval units bombard Turkish forts in the Dardenelles. 21/02/1915 Russians lose the Second Battle of Masurian Lakes, suffering heavy loses in the process. 01/03/1915 American citizen die as the British liner Falaba, becomes the first passenger ship to be sunk by U-boats. Captain George Van Horn Moseley of U.S. War College Divison suggests a plan for universal military training to the Chief of Staff. 11/03/1915 Britain announces a blockade of all German ports. 30/03/1915 Allied offensive in Artois and Champagne ends. Mar 1915 Battle of Neuve-Chapelle. 22/04/1915 The Second Battle of Ypres begins. Poison gas is used for the first time by Germans in an attack on the Canadian sector. 23/04/1915 Allied forces make landings an Gallipoli, Turkey. 26/04/1915 France, Russia, Italy and Britain conclude secret Treaty of London. Apr 1915 The Germans, focusing on Eastern Front, launch an offensive against the Russians breaking through Gorlice-Tarnow in Poland. 02/05/1915 Austro-German offensive begins into Russian Poland. 05/05/1915 Second Battle of Ypres ends. 07/05/1915 The British liner Lusitania is sunk by a U-Boat with the loss of 1,198 civilians, including 128 American lives, creating a US-German diplomatic crisis. 09/05/1915 Second Battle of Artois begins. 23/05/1915 Ignoring treaty agreements with the Central Powers, Italy declares war on Austria-Hungary. 25/05/1915 British Prime Minister Asquith reorganises his Liberal government as a coalition of the parties. 29/06/1915 The Italians launch an unsuccessful attack against Austro-Hungary at what will be called the 1st Battle of Isonzo. There will be 12 in total. 21/07/1915 President Wilson sends notes to Secretary of War Garrison and Secretary of Navy Daniels directing them to draft a defense program. 04/08/1915 German troops capture Warsaw. 19/08/1915 Two Americans die in sinking of ship Arabic, off the coast Ireland by a U-boat. 21/08/1915 The Washington Post carries story that General Staff are planning to send a force of 1 million soldiers overseas. 24/08/1915 Another U.S paper, this time the Baltimore Sun carries the story that General Staff is planning to send a million soldiers overseas. The War College Division denies the allegations in Washington Post and Baltimore Sun. The American General Staff, in response to request from Secretary of War Lindley M. Garrison, devotes much of the year to preparing the "Statement of a Proper Military Policy for the United States". 30/08/1915 Responding to American demands, Germany stops sinking ships without warning. 31/08/1915 The Germans end their offensive against the Russians having forced Russia out of much of Poland. The Gallipoli debacle ends, with the Turkish siege of the remaining Allied forces. 05/09/1915 Tsar Nicholas takes commands of Russian armies. 15/09/1915 British forces use gas in battle near Loos, but shifting winds cause 60,000 British casualties. 22/09/1915 The Second Battle of Champagne begins. Sep 1915 Battles of Artois starts. Battle of Loos starts. 03/10/1915 Anglo-French force lands at Salonika in Greece. Oct 1915 Battles of Artois & Champagne ends. Battle of Loos ends. Austro-German-Bulgarian forces invade Serbia, expelling the Serbian army from the country 04/11/1915 Henry Ford's peace ship, Oskar II, begins its voyage to Europe. 15/12/1915 General Sir Douglas Haig takes Field Marshal Sir John French's position as Commander-in Chief of the British Forces in France. This also gave him control of the Canadian Forces in Europe. 28/12/1915 The Allies begin the withdrawal of troops from Gallipoli.