The Gallipoli campaign, the Dardanelles campaign, the Defence of Gallipoli or the Battle of Gallipoli (Turkish: Gelibolu Muharebesi, Çanakkale Muharebeleri or Çanakkale Savaşı) was a military campaign in the First World War on the Gallipoli Peninsula (now Gelibolu) from 19 February 1915 to 9 January 1916. The Allied powers (Britain, France and the Russian Empire) unsuccessfully attempted to make the Ottoman Empire, one of the Central Powers, capitulate by taking control of the Turkish straits. They intended to expose the Ottoman capital at Constantinople to bombardment by Allied warships and cut it off from the Asian part of the empire. An Ottoman Empire defeat could have led to unfettered Western control of the Suez Canal and the opening of the Bosphorus and Dardanelles straits to Allied supplies headed for the Black Sea and warm-water ports in Russia.
In March 1915, the Allied fleet failed to force a passage through the Dardanelles. An amphibious landing on the Gallipoli peninsula began in April 1915. In January 1916, after eight months' fighting, with approximately 250,000 casualties on each side, the land campaign was abandoned and the invasion force was withdrawn, resulting in an Ottoman victory. It was a costly campaign for the Allied powers and the Ottoman Empire as well as for the sponsors of the expedition, especially the First Lord of the Admiralty (1911–1915), Winston Churchill.
In Turkey, it is regarded as a defining moment in the country's history. Mustafa Kemal Atatürk, who rose to prominence as a commander at Gallipoli, became the founder and first president of the Republic of Turkey in 1923. The campaign is considered by some to be the beginning of Australian and New Zealand national consciousness. The anniversary of the landings, 25 April, is known as Anzac Day, the most significant commemoration of military casualties and veterans in the two countries, surpassing Remembrance Day (Armistice Day).
Background
Black Sea raid
On 29 October 1914, two former German warships, the Ottoman Yavûz Sultân Selîm and Midilli, conducted the Black Sea raid, in which they bombarded the Russian port of Odessa and sank several ships. On 31 October, the Ottomans entered the war and began the Caucasus campaign against Russia. The British briefly bombarded forts in Gallipoli, invaded Mesopotamia and studied the possibility of forcing the Dardanelles.
Entente strategy and the Dardanelles
Before the Dardanelles operation was conceived, the British had planned to conduct an amphibious invasion near Alexandretta on the Mediterranean, an idea originally presented by Boghos Nubar in 1914. This plan was made by the Secretary of State for War, Field Marshal Earl Kitchener, to sever the Ottoman capital from Syria, Palestine and Egypt. Alexandretta was an area with a Christian population and was the strategic centre of the Ottoman railway network; its capture would cut the empire in two. Vice Admiral Sir Richard Peirse, Commander-in-Chief, East Indies, ordered Captain Frank Larkin of HMS Doris to Alexandretta on 13 December 1914. The Russian cruiser Askold and the French cruiser Requin were also present. Kitchener was working on the plan in March 1915, the beginning of the British attempt to incite an Arab Revolt. The Alexandretta landing was abandoned because militarily it would have required more resources than France could allocate and politically France did not want the British operating in their sphere of influence, a position to which Britain had agreed in 1912.
By late 1914, on the Western Front, the Franco–British counter-offensive of the First Battle of the Marne had ended and the Belgians, British and French had suffered many casualties in the First Battle of Ypres in Flanders. The war of manoeuvre had evolved into trench warfare. The German Empire and Austria-Hungary closed the overland trade routes between Britain and France in the west and Russia in the east. The White Sea in the Arctic and the Sea of Okhotsk in the Far East were icebound in winter and distant from the Eastern Front; the Baltic Sea was blockaded by the Kaiserliche Marine (Imperial German Navy) and the entrance to the Black Sea through the Dardanelles was controlled by the Ottoman Empire. While the Ottomans remained neutral, supplies could be sent to Russia through the Dardanelles but prior to the Ottoman entry into the war, the straits had been closed; in November the Ottomans began to mine the waterway.
The French politician Aristide Briand proposed in November to attack the Ottoman Empire, but this was rejected and an attempt by the British to bribe the Ottomans to join the Entente side also failed. Later that month, Winston Churchill, First Lord of the Admiralty, proposed a naval attack on the Dardanelles, based in part on erroneous reports of Ottoman troop strength. Churchill wanted to use a large number of obsolete battleships, which could not operate against the German High Seas Fleet, in a Dardanelles operation, with a small occupation force provided by the army. It was hoped that an attack on the Ottomans would also draw Bulgaria and Greece into the war on the Entente side. On 2 January 1915, Grand Duke Nicholas of Russia appealed to Britain for assistance against the Ottomans, who were campaigning in the Caucasus. Planning began for a naval demonstration in the Dardanelles, to divert Ottoman troops from Caucasia.
Naval operations
On 17 February 1915, a British seaplane from seaplane carrier HMS Ark Royal flew a reconnaissance sortie over the Straits. Two days later, the first attack on the Dardanelles began when an Anglo-French flotilla, including the British dreadnought HMS Queen Elizabeth, began a long-range bombardment of Ottoman coastal artillery batteries. The British had intended to use eight aircraft from Ark Royal to spot for the bombardment but only a Short Type 136, was serviceable. A period of bad weather slowed the attack but by 25 February the outer forts had been reduced and the entrance cleared of mines. Royal Marines were landed to destroy guns at Kum Kale and Seddülbahir, while the naval bombardment shifted to batteries between Kum Kale and Kephez.
Frustrated by the mobility of the Ottoman batteries, sited on the instructions of General Otto Liman von Sanders, which evaded the Entente bombardments and threatened the minesweepers sent to clear the Straits, Churchill pressed the naval commander, Admiral Sackville Carden, to increase the fleet's efforts. Carden drew up fresh plans and on 4 March sent a cable to Churchill, stating that the fleet could expect to arrive in Istanbul within 14 days. A sense of impending victory was heightened by the interception of a German wireless message that revealed the Ottoman Dardanelles forts were running out of ammunition. When the message was relayed to Carden, it was agreed the main attack would be launched on or around 17 March. Carden, suffering from stress, was placed on the sick list by the medical officer and command was taken over by Admiral John de Robeck.
18 March 1915
On the morning of 18 March 1915, the Entente fleet, comprising 18 battleships with an array of cruisers and destroyers, began the main attack against the narrowest point of the Dardanelles, where the straits are 1 mi (1.6 km) wide. Despite some damage to the Entente ships by Ottoman return fire, minesweepers were ordered along the straits. In the Ottoman official account, by 2:00 p.m. "all telephone wires were cut, all communications with the forts were interrupted, some of the guns had been knocked out ... in consequence the artillery fire of the defence had slackened considerably". French battleship Bouvet struck a mine, causing her to capsize in two minutes, with just 75 survivors out of 718 men. Minesweepers, manned by civilians, retreated under Ottoman artillery fire, leaving the minefields largely intact. Battleship HMS Irresistible and battlecruiser HMS Inflexible struck mines. Irresistible was sunk, with most of her crew rescued; Inflexible was badly damaged and withdrawn. There was confusion during the battle about the cause of the damage; some participants blaming torpedoes. Battleship HMS Ocean was sent to rescue Irresistible but was disabled by a shell, struck a mine and was abandoned, eventually sinking.
The French battleships Suffren and Gaulois sailed through a new line of mines placed secretly by the Ottoman minelayer Nusret ten days before and were also damaged. The losses forced de Robeck to sound the "general recall" to protect what remained of his force. During the planning of the campaign, naval losses had been anticipated and mainly obsolete battleships, unfit to face the German fleet, had been sent. Some of the senior naval officers like the commander of Queen Elizabeth, Commodore Roger Keyes, felt that they had come close to victory, believing that the Ottoman guns had almost run out of ammunition but the views of de Robeck, the First Sea Lord Jackie Fisher and others prevailed. Entente attempts to force the straits using naval power were terminated, due to the losses and bad weather. Planning to capture the Ottoman defences by land, to open the way for the ships, began. Two Entente submarines tried to traverse the Dardanelles but were lost to mines and the strong currents.
Prelude
Entente preparations
After the failure of the naval attacks, troops were assembled to eliminate the Ottoman mobile artillery, which was preventing the Entente minesweepers from clearing the way for the larger vessels. Kitchener appointed General Sir Ian Hamilton to command the 78,000 men of the Mediterranean Expeditionary Force (MEF). Soldiers from the Australian Imperial Force (AIF) and New Zealand Expeditionary Force (NZEF) were encamped in Egypt, undergoing training prior to being sent to France. The Australian and New Zealand troops were formed into the Australian and New Zealand Army Corps (ANZAC), commanded by Lieutenant General Sir William Birdwood, comprising the volunteer 1st Australian Division and the New Zealand and Australian Division. The ANZAC troops were joined by the regular 29th Division and the Royal Naval Division. The French Corps expéditionnaire d'Orient (Orient Expeditionary Corps), initially consisting of two brigades within one division, was subsequently placed under Hamilton's command.
Over the following month, Hamilton prepared his plan and the British and French divisions joined the Australians in Egypt. Hamilton chose to concentrate on the southern part of the Gallipoli peninsula at Cape Helles and Seddülbahir, where an unopposed landing was expected. The Entente initially discounted the fighting ability of the Ottoman soldiers.
The underestimation of Ottoman military potential stemmed from a "sense of superiority" among the Allies, because of the decline of the Ottoman Empire and its poor performance in Libya during the Italo-Turkish War of 1911–1912 and the Balkan Wars of 1912 and 1913. Entente intelligence failed to adequately prepare for the campaign, in some cases relying on information gained from Egyptian travel guides. The troops for the assault were loaded on transports in the order they were to disembark, causing a long delay which meant that many troops, including the French at Mudros, were forced to detour to Alexandria to embark on the ships that would take them into battle. A five-week delay until the end of April ensued, during which the Ottomans strengthened their defences on the peninsula, although bad weather during March and April might have delayed the landings anyway, preventing supply and reinforcement.
Following preparations in Egypt, Hamilton and his headquarters staff arrived at Mudros on 10 April. The ANZAC Corps departed Egypt in early April and assembled on the island of Lemnos in Greece on 12 April, where a small garrison had been established in early March and practice landings were undertaken. The British 29th Division departed for Mudros on 7 April and the Royal Naval Division rehearsed on the island of Skyros, after arriving there on 17 April. That day, the British submarine HMS E15 tried to run the straits but hit a submarine net, ran aground and was shelled by an Ottoman fort, killing its commander, Lieutenant Commander Theodore S. Brodie and six of his crew; the survivors were forced to surrender. The Entente fleet and British and French troops assembled at Mudros, ready for the landings but poor weather from 19 March grounded Entente aircraft for nine days and in 24 days only a partial programme of reconnaissance flights was possible.
Ottoman preparations
The Ottoman force prepared to repel a landing on either side of the Straits was the 5th Army. This force, which initially consisted of five divisions with another en route, was a conscript force, commanded by Sanders. Many of the senior officers in the 5th Army were also German. Ottoman commanders and senior German officers debated the best means of defending the peninsula. All agreed that the best defence was to hold the high ground on the ridges. There was disagreement as to where the Entente would land and where to concentrate forces. Lieutenant Colonel Mustafa Kemal was familiar with the Gallipoli peninsula from his operations against Bulgaria in the Balkan Wars and forecast that Cape Helles (the southern tip of the peninsula) and Gaba Tepe were the likely areas for landing. 15,000-25,000 Bosniaks, mostly from the Sandzak Region on the border between Serbia and Montenegro went to Canakkale to fight in the ranks of the Ottoman army.