This article presents the timeline of the Gallipoli Campaign. The period of the proper battle is considered to be 19 February 1915 to 9 January 1916; however, a number of events took place between August 1914 and January 1915 that are relevant to the battle.
Complete timeline
August 1914
3 – First Lord of the Admiralty, Winston Churchill, confiscates two Ottoman battleships (i.e. and ) under construction in the United Kingdom. 10 – German warships and , having evaded Royal Navy pursuit in the Mediterranean, reach the Dardanelles and are granted passage.
October 1914
28 – Ottoman navy raids Russian Black Sea ports including Odessa and Sevastopol.
November 1914
2 – Royal Navy squadron, including the battlecruisers and , bombard the Turkish forts at the entrance to the Dardanelles. 6 – Politics: The United Kingdom declares war on Turkey.
December 1914
13 – Naval operations: British submarine sinks the obsolete in the straits south of Çanakkale.
January 1915
13 – British War Council approves plans for a naval operation to force the Dardanelles. 15 – Naval operations: is lost after running aground in the straits.
February 1915
19 – Naval operations: First attack on the Dardanelles by battleships , and . 25 – Naval operations: Second attack on the Dardanelles, led by Vice-Admiral John de Robeck aboard Vengeance.
March 1915
10 – Naval operations: Night attack in the straits led by Commodore Roger Keyes and the battleship . 12 – General Sir Ian Hamilton is appointed commander of the Mediterranean Expeditionary Force by the Secretary of State for War, Horatio Kitchener. 13 – Naval operations: Keyes conducts another night-time minesweeping operation with some success. 16 – Naval operations: Admiral Carden, commander of the Allied fleet, resigns due to nervous strain. Vice-Admiral de Robeck takes command. 18 – Naval operations: Turkey defeats the final attempt by the British and French fleet to force the straits. Three battleships are sunk by mines. Three battleships and the battlecruiser are badly damaged. 22 – At a conference between Hamilton and de Robeck aboard , it is decided to make an amphibious landing on the Gallipoli peninsula.
April 1915
17 – British submarine runs aground in the straits. 25 – British Empire and French forces make amphibious landings on the Gallipoli peninsula. Landing at Cape Helles made by the British 29th Division and elements of the Royal Naval Division. Landing at Anzac Cove made by the Australian and New Zealand Army Corps (ANZAC). French forces make a diversion landing at Kum Kale on the Asian shore. 26 – Naval operations: Australian submarine becomes the first Allied vessel to pass through the Dardanelles into the Sea of Marmara. 27 – Anzac: Under the command of Mustafa Kemal, the Turks mount a counter-attack but fail to drive the Anzacs into the sea. 27 – Naval operations: British submarine passes through the Dardanelles to start a successful three-week tour. 28 – Helles: First Battle of Krithia British and French forces suffer 4,000 casualties for little gain. 28 – Anzac: The Anzac landing is reinforced by four battalions from the Royal Naval Division.