Battle of the Heligoland Bight (1939) but it produced co-operation difficulties. A solution to the problem was twofold. Fighter units defending the North Sea coast were subordinated to "Luftgaukommando" XI (Air District Command 9) in Hanover. These fighter units would function as an autonomous fighter command, or "Jagdfliegerführer" (Fighter Flyer Leaders). The command of Fighter Command unit was given to "Oberstleutnant" Carl-August Schumacher, a former commander of II./"Jagdgeschwader" 77. Schumacher had served in the "Kaiserliche Marine" (Imperial German Navy) during the First World War and as an officer cadet had seen combat at the Battle of Jutland. It was hoped with his naval background and easy
Battle of Jutland maintained their numerical superiority and had 23 dreadnoughts ready and four battlecruisers still able to fight, while the Germans had only 10 dreadnoughts. One month after the battle, the Grand Fleet was stronger than it had been before sailing to Jutland. "Warspite" was dry docked at Rosyth, returning to the fleet on 22 July, while "Malaya" was repaired in the floating dock at Invergordon, returning to duty on 11 July. "Barham" was docked for a month at Devonport before undergoing speed trials and returning to Scapa on 8 July. "Princess Royal" stayed initially at Rosyth but transferred to dry dock