Luftflotte 5 was responsible for German air operations during the invasion of Norway, and for the defence of the occupied territory thereafter. It was divided into various operational formations, governing air forces, and into Air Districts controlling ground forces and facilities. In 1940, for the invasion, its main air asset was Fliegerkorps X, a formation comprising four bomber and one fighter wings together with air support forces. With the conclusion of the Norwegian campaign Fliegerkorps X was moved to other theatres. On 15 August 1940 the Luftwaffe mounted the largest number of sorties of the Battle of Britain. Luftflotte 5 attacked the north of England. Believing Fighter Command strength to be concentrated in the south, raiding forces from Denmark and Norway ran into unexpectedly strong resistance. Inadequately escorted by Bf 110s, bombers were shot down in large numbers. North East England was attacked by 65 Heinkel He 111s escorted by 34 Messerschmitt Bf 110s, and RAF Driffield was attacked at midday by 50 unescorted Junkers Ju 88s. Out of 115 bombers and 35 fighters sent, 16 bombers and 7 fighters were destroyed. As a result of these casualties, Luftflotte 5 did not appear in strength again in the campaign. After the invasion of Norway air operations came under Fliegerführer Nord, an ad hoc formation of assigned squadrons and groups. From June 1941 fighter forces in Norway came under the separate command of Jagdfliegerführer Norwegen. Total forces amounted to three fighter groups and one bomber group, with attached night fighter and fighter bomber squadrons plus auxiliaries. On the ground Luftflotte 5's assets were administered by a single air district, Luftgau Kommando Norwegen, with subordinate commands operating airfields around Oslo, Kristiansand, Bergen, and Stavanger in the south, Trondheim, in the centre, and Narvik and Kirkenes in the north of the country. In 1941, with the invasion of the Soviet Union and the entry of Finlandinto the war as Germany's ally, a second air district was formed around Rovaniemi, to co-ordinate German air activity on the northern front and Operation Silberfuchs. In June 1942Ff Nord was divided into three separate commands; Ff Nord West, organized from Trondheim; Ff Lofoten operating from the Lofoten Islands against Allied convoys to Murmansk and the Soviet arctic ports; and Ff Nord Ost, supporting Army operations against Murmansk and the northern front. In the summer of 1942 Ff Lofoten was reinforced with two bomber groups formed specifically for maritime operations. In 1944 these formations were reorganized again; Nord Ost became, briefly Ff Eismeer before becoming Ff 3; Nord West became Ff 4; and Lofoten became Ff 5. On the ground LgK Norwegen became Kommandierende General der Luftwaffe in Norwegen, covering ground and air formations in Norway, while LgK Finnland became K.G. Finnland, with a similar remit in Finland and, later, northern Norway. As the war progressed however these organizations became increasingly irrelevant as German forces were forced to retreat and their air strength diminished. By the end of World War II they existed largely on paper.
