 HMS Agamemnon was one of two Lord Nelson @-@ class pre @-@ dreadnought battleships launched in 1906 and completed in 1908 . She was the Royal Navy 's second @-@ to @-@ last pre @-@ dreadnought battleship to be built , followed by her sister ship , Lord Nelson . She was assigned to the Channel Fleet when World War I began in 1914 . The ship was transferred to the Mediterranean Sea with Lord Nelson in early 1915 to participate in the Dardanelles Campaign . She made a number of bombardments against Turkish fortifications and in support of British troops . Agamemnon remained in the Mediterranean after the conclusion of that campaign to prevent the German battlecruiser SMS Goeben and light cruiser Breslau from breaking out into the Mediterranean . Agamemnon shot down the German Zeppelin LZ85 during a bombing mission over Salonica in 1916 . On 30 October 1918 , the Ottoman Empire signed the Armistice of Mudros on board the ship while she was anchored at Lemnos in the northern Aegean Sea . She was converted to a radio @-@ controlled target ship following her return to the United Kingdom in March 1919 and began service in 1921 . Agamemnon was replaced by Centurion at the end of 1926 and sold for scrap in January 1927 , the last pre @-@ dreadnought in service with the Royal Navy . 
