<P> HMS Triumph was ordered by Chile as Libertad and laid down by Vickers, Sons & Maxim at Barrow - in - Furness on 26 February 1902 and launched on 15 January 1903 . She was completed in June 1904 and commissioned at Chatham Dockyard on 21 June 1904 for service in the Home Fleet . On 17 September 1904 the ship was struck by SS Siren off Pembroke Dock and was only slightly damaged . Under a fleet reorganization in January 1905, the Home Fleet became the Channel Fleet . She collided with her sister ship Swiftsure on 3 June 1905 and suffered damage to her bow . Triumph received a brief refit at Chatham Dockyard in October 1908 and was transferred to the Mediterranean Fleet on 26 April 1909 . The ship returned to the Home Fleet in May 1912 . She was transferred to the China Station on 28 August 1913 and was placed in reserve at Hong Kong until mobilized in August 1914 at the beginning of World War I . </P> <P> Triumph was recommissioned using the crews of demobilised river gunboats, supplemented with two officers, 100 enlisted men, and six signallers from the Duke of Cornwall's Light Infantry, and was ready for sea on 6 August 1914 . Triumph took part in operations off the German colony of Tsingtao, China in early August 1914, with the intention of stopping German shipping entering or returning to the port . Triumph, together with the French cruiser Dupleix, captured the German merchant ship Senegambia, laden with coal and cattle, on the morning of 21 August, with Dupliex then chasing and eventually capturing a second merchant ship, the C. Ferd Laeiz . On the evening of 21 August, Triumph captured the German merchant ship Frisia, also carrying coal and cattle . On 23 August 1914, she was attached to the Imperial Japanese Navy's Second Fleet, and after disembarking her Army volunteers at Wei - hai - wei, participated in the campaign against the German colony at Tsingtao . In September, Triumph, together with the destroyer Usk, escorted a convoy carrying British troops for operations against Tsingtao, with Triumph taking part in several bombardments of German positions until the capture of Tsingtao by the Japanese . Triumph was hit by a German shell during a bombardment on 14 October, damaging a mast, and killing one crewman and wounding two more . With Tsingtao in Japanese hands, Triumph returned to Hong Kong for a refit on 19 November 1914 . </P> <P> Upon completion of her refit in January 1915, Triumph was transferred to the Dardanelles for service in the Dardanelles Campaign . The ship departed Hong Kong on 12 January and stopped at Suez from 7 February to 12 February before moving on to join the Dardanelles Squadron . Triumph took part in the opening attack on the entrance forts on 18 February and 19 February, and joined the predreadnoughts Albion and Cornwallis in using her secondary battery to silence the fort at Sedd el Bahr on 25 February . She, Albion, and Majestic were the first Allied battleships to enter the Turkish Straits during the campaign when they carried out the initial attack on the inner forts on 26 February . She also took part in the attack on Fort Dardanos on 2 March 1915 . She and Swiftsure were detached from the Dardanelles on 5 March for operations against forts at Smyrna, returning to the Dardanelles on 9 March . </P> <P> Triumph participated in the main attack on the Narrows forts on 18 March, and fired on Ottoman trenches at Achi Baba on 15 April . On 18 April, one of her picket boats and one from Majestic torpedoed and sank the British submarine E15, which had run aground near Fort Dardanos and was in danger of being captured by Ottoman forces . Triumph supported the main landing by the Anzac forces at Gaba Tepe on 25 April, and continued to support them through May . On 25 May, the ship was underway off Gaba Tepe, firing on Ottoman positions, with torpedo nets out and most watertight doors shut, when she sighted a submarine periscope 300 to 400 yards (270 to 370 m) off her starboard beam at about 1230 hours . It belonged to the U-boat U-21 under the command of Lieutenant Otto Hersing. Triumph opened fire on the periscope, but was almost immediately struck by a torpedo, which easily cut through her torpedo net, on her starboard side . A tremendous explosion resulted, and Triumph took on a list 10 ° to starboard . She held that list for about five minutes, then it increased to 30 ° . The destroyer Chelmer evacuated most of her crew before she capsized ten minutes later . She remained afloat upside down for about 30 minutes, then began to sink slowly in about 180 feet (55 m) of water . Three officers and 75 enlisted men died in her sinking . </P>

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