At the battle of Jutland in 1916 during the First World War, the Royal Navy did not succeed to annihilate the German main fleet. After the War, the dispute about the cause to the unsuccessful result of the battle grew up and lead to the so-called Jutland Controversy in 1920s. In the controversy, John Rushworth Jellicoe, commander-in-chief of the British main fleet at the battle, was naturally a focus and his command at the battle was criticised. This paper examines the relation of Jellicoe to the controversy. Jellicoe was very cautious in his command and did not put his fleet at risk to gain a decisive victory at the battle of Jutland. Such cautious command as the deployment of the battle fleet away from the German fleet just before engagement
