John Arbuthnot Fisher, 1st Baron Fisher
First Sea Lord John Arbuthnot Fisher reorganized and strengthened the British Royal Navy to counter the rapid expansion of the German Navy during World War I.
John Arbuthnot Fisher was born on January 25, 1841, in Ceylo (now Sri Lanka). Promoted to the Admiralty board in 1892, he became first sea lord in 1904. He reorganized and strengthened the British navy to counter the rapid expansion of the German navy, and his reforms and innovations—including the conception of the battleship Dreadnought—ensured the Royal Navy's dominance in World War I.