John Jellicoe

Jellicoe commanded the British Grand Fleet at the Battle of Jutland, the largest naval battle of World War I. He deployed the fleet in a line of battle, preventing a decisive German victory but failing to destroy the High Seas Fleet. The battle was tactically inconclusive.

Jellicoe was appointed First Sea Lord, the professional head of the Royal Navy. He focused on anti-submarine warfare and convoy systems to counter the German U-boat threat, but faced criticism for the Navy's performance.

Jellicoe served as Governor-General of New Zealand, representing the British monarch. His tenure focused on naval defense and imperial relations, but was largely ceremonial.