Fisher, John Arbuthnot (1841-1920)

British admiral, First Sea Lord 1904-10, when he carried out many radical reforms and innovations, including the introduction of the dreadnought battleship. KCB 1894, Baron 1909.

He served in the Crimean War 1855 and the China War 1859-60. He held various commands before becoming First Sea Lord, and returned to the post 1914, but resigned the following year, disagreeing with Winston Churchill over sending more ships to the Dardanelles, Turkey, in World War I.