Norwegian campaign order of battle
The German operation for the invasion of Denmark and Norway in April 1940 was code-named "Weserübung", or "Weser Exercise." Opposing the invasion were the partially mobilized Norwegian military, and an allied expeditionary force composed of British, French, and Free Polish formations. The following list formed the order of battle for this campaign. Germany. XXI Gruppe. On 1 March 1940, the German 21st Army Corps was renamed Group XXI and placed in charge of the invasion of Norway. The group was allotted two Mountain and five Infantry divisions for this task. It was led by  the commanding officer of the XXI Korps, "General der Infanterie" Nikolaus von Falkenhorst. His Chief of Staff was "Oberst" Erich Buschenhagen. Luftwaffe. The Luftwaffe's X Fliegerkorps was commanded by "Generalleutnant" Hans Ferdinand Geisler; it had operational command of all Luftwaffe units participating in Operation Weserübung. Kriegsmarine. Baltic Sea and Norwegian Waters Naval Group Command West – "Generaladmiral" Alfred Saalwächter Battleship Force – "Vizeadmiral" Günther Lütjens Objective: Narvik Warship Group One – "Kapitän zur See" and "Kommodore" Friedrich Bonte ( 10 April) Transporting: Landing Group (planned to be at or entering Narvik when Warship Group One was scheduled to arrive.) Tanker Group Objective Trondheim  Warship Group Two – "Kapitän zur See" Hellmuth Heye, Transporting: Landing Group (Planned to be at or entering Trondheim when Warship Group Two was scheduled to arrive.) Tanker Group Objective Bergen Warship Group Three – Rear Admiral Hubert Schmundt 1. S-Boatflotilla – "Kapitänleutnant" Heinz Birnbacher Transporting: Landing Group Landing Group Stavanger Objectives Kristiansand and Arendal Warship Group Four – "Kapitän zur See" Friedrich Rieve 2. S-Boat-Flotilla – "Korvettenkapitän" Rudolf Petersen Transporting Objectives Oslo and Oslofjord Warship Group Five – Rear Admiral Oskar Kummetz Objective Oslo Objectives Son and Moss Objective Horten Objective Rauøy Island Objective Bolærne Island Objective Egersund Cable Station Warship Group  Six – "Korvettenkapitän" Kurt Thoma, 2 Minehunting Flotilla Objectives Korsör and Nyborg Warship Group Seven – "Kapitän zur See" Gustav Kleikamp School Flotilla of Commander in Chief Baltic Approaches Objectives Copenhagen Warship Group Eight – "Korvettenkapitän" Wilhelm Schroeder Warship Group Eight supported in the waters of the Belt by 13. Patron-Flotilla – "Kapitänleutnant" Dr. Walther Fischer Objectives Middelfart and Belt Bridge Warship Group Nine – "Kapitän zur See" Helmut Leissner, F.d.V.O Objectives Esbjerg and Nordby Warship Group Ten – "Kapitän zur See" and "Kommodore" Friedrich Ruge F.d.M. West 12. Minehunter Flotilla – "Korvettenkapitän" Karl Marguth 2. Minesweeper Flotilla – "Korvettenkapitän" Gert von Kamptz Objective Thyborön  'Warship Group Eleven – "Korvettenkapitän" Walter Berger 4. Minehunter Flotilla – "Korvettenkapitän" Walter Berger 3. Minesweeper Flotilla – "Kapitänleutnant" Hagen Küster Mine Sweeper Covering Group Laying minefields to the Skagerrak to protect the German resupply route to southern Norway. Minelaying Group – "Kapitän zur See" Kurt Böhmer: U-Boat Force Force – Rear Admiral Karl Dönitz U-Boat Group One Patrol area: Narvik, Harstad, Vestfjord, Vågsfjord U-Boat Group Two Patrol area: Trondheim, Namsos, Romsdalsfjord U-Boat Group Three Patrol area: Bergen, Ålesund, Shetland Islands U-Boat Group Four Patrol area: Stavanger U-Boat Group Five Patrol area: East of the Shetland Islands, Vågsfjord, Trondheim  U-Boat Group Six Patrol area: Pentland, Orkney Islands, Shetland Islands U-Boat Group Seven Never assembled U-Boat Group Eight Patrol area: Lindesnes, Egersund U-Boat Group Nine Patrol area: Bergen, Shetland Islands Unassigned to a group Operating in the area of the Orkney Islands, Shetland Islands, and Bergen Norway. Owing to the speed and surprise achieved by the German forces, the Norwegian army was only able to partially mobilize. Unit strengths were only a fraction of their paper establishments. Unlike the armies of most other nations, the Norwegian "division" was more of an administrative and mobilization unit, rather  than a fighting formation. The most important tactical unit of the Norwegian army was the regiment. When mobilized, each regiment was supposed to muster two battalions of infantry of the line, and one battalion of "landvern". Some of the Norwegian forces were "ad hoc" battalions. The commander of the Norwegian Army at the time of the invasion was General Kristian Laake. He was replaced by Colonel Otto Ruge on 11 April. Each Regiment had 3,750 soldiers, with 60,000 being the total number of soldiers by 1940. Every battalion had around 1,250 soldiers. However, only 55,000 soldiers were well prepared. Norwegian  Army. At the time of the German invasion, the Norwegian Army was only partially mobilized, and thus only the following land units were immediately available to the Norwegians; Norwegian Army Air Service. At the outbreak of the German invasion, the Norwegian Army Air Service consisted of: Of the Norwegian Army Air Service's aircraft, all were shot down, destroyed or captured by the Germans during the campaign, except two Fokker C.Vs and one Tiger Moth that were flown to Finland on 8 June 1940. The three biplanes were intended to form a Norwegian Army Air Service training unit in Finland  under the command of Captain Ole Reistad, but were eventually taken over by the Finnish Air Force. Royal Norwegian Navy. The Royal Norwegian Navy during the campaign consisted of: Royal Norwegian Navy Air Service. The Royal Norwegian Navy Air Service consisted of: Of the Royal Norwegian Navy Air Service's fleet of aircraft, four Heinkel He 115s were evacuated to the United Kingdom at the end of the campaign, while one He 115 and three Marinens Flyvebaatfabrikk M.F.11s were flown to Finland and taken over by the Finnish Air Force. Allied. Mauriceforce. Commanded by Major-General Carton de Wiart V.C. , this group began landing at Namsos on 14 April. Sickleforce. Commanded by Major-General Bernard Charles Tolver Paget, this force landed at Åndalsnes starting 18 April. Rupertforce. Commanded by Major-General Pierse Joseph Mackesy, this force landed at Harstad, north of Narvik, between 15 April and 5 May. North Western Expeditionary Force. Commanded by Lieutenant-General Claude Auchinleck, this force resulted from the reorganisation of British forces in the Narvik area on 13 May 1940.