John "Jacky" Fisher

First Sea Lord who scrapped scores of obsolete ships and built HMS Dreadnought in a year, making every existing battleship in the world out of date — including Britain's own, which was the criticism. He also concentrated the fleet in home waters against Germany, a strategic judgement that mattered more than the ship.

• Lived: 1841 CE – 1920 CE
• Nationality: english
• Roles: admiral, reformer