On this day, 109 years ago, on May 31, 1916 (April 30, 1916, the Battle of Jutland broke out. The HMS Queen Mary was shot and caught fire. This is a photo taken from a British destroyer. On May 31, 1916, the German High Seas Fleet retreated to the Wilhelmshaven Naval Base tonight after two days of fierce fighting with the British fleet in the North Sea. In the first conflict between the two most powerful fleets in the world, the British army suffered heavy losses. The Royal Navy reportedly lost one battleship, one battlecruiser, four light cruisers and five destroyers. The British casualties were 6907. The Germans lost a battleship, a cruiser and a destroyer. Several German capital ships were hit by the British and severely damaged. The Germans died 2545 people. The two battlecruiser teams launched a fierce battle at 2:45 p.m. on May 30, which lasted for two hours. They fired four shells at the same time, each shell weighing half a ton. The British army had advantages in the number, speed and firepower of ships, but due to poor communications, the commander, Sir John Jellico, did not give full play to these advantages. As a result, the German fleet escaped at a critical moment. Because the fleet failed to move in tactical formation, he had to readjust the formation, losing 22 minutes. The question before the British Admiralty was whether the German army would be inspired by the battle to make a comeback.