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
Line of battle Ships built according to these doctrines tended to mount a handful of guns which could fire ahead or all-round, rather than broadside. The fleets of these periods tended to use the line of battle less. However, as ramming fell out of fashion, the logic of the line of battle returned; used in the Battle of Tsushima of 1905, the Battle of Jutland in 1916 and finally in the Battle of Surigao Strait in 1944. During World War II the development of aircraft carriers meant that gun engagements were no longer decisive. This meant there was no rationale for using a