The Royal Navy had established a blockade of the North Sea at the start of the war and the German Hochseeflotte could not match the larger Grand Fleet.
[citation needed] Officers killed in action are indicated thus: † Abbreviations for officers’ ranks (German ranks translated according to current NATO practice)[b][clarification needed]: Other abbreviations Began sortie from Scapa Flow 9.30pm 28 May[4] The Grand Fleet[5][6] was the main body of the British Home Fleets in 1916, based at Scapa Flow in the Orkney Islands and Invergordon on the Cromarty Firth in Scotland.
Horace Hood, (KIA) This force of high-speed ships was subordinate to the Commander in Chief of the Grand Fleet, but operated independently as an advanced guard, intended to reconnoiter the enemy fleet and to engage enemy scouting forces.
At its core were six battlecruisers, accompanied by 13 light cruisers, and escorted by 18 destroyers and an early aircraft carrier.
[r] Sortied from Firth of Forth soon after 6.00pm 30 May[4] Vice-Admiral Sir David Richard Beatty in HMS Lion HMS Lion: (flagship) Captain Ernle Chatfield Attached to the light cruisers was the seaplane tender HMS Engadine (Lt Cdr Charles Gwillim Robinson) carrying two Short Type 184 reconnaissance seaplanes and two Sopwith Baby fighter seaplanes.
[w] Rear-Admiral Hugh Evan-Thomas Sortied from Firth of Forth with the Battle Cruiser Fleet soon after 6.00pm 30 May The High Seas Fleet was the main body of the German surface navy, principally based at Wilhelmshaven, on the Jade River in North-West Germany.
Torpedoboots-Flottille (9th Torpedo-Boat Flotilla) Führer der Unterseeboote ("Leader of the U-boats") in the North Sea Fregattenkapitän Hermann Bauer in SMS Hamburg The following submarines were deployed to attack the Grand Fleet in the North Sea during the period of the Battle of Jutland During the battle the Germans used the Zeppelin airships of the Naval Airship Section (Marine Luftschiff Abteilung) for scouting, although in the prevailing overcast conditions they were not particularly successful.