Losigkeit was born on 17 November 1913 in Berlin-Tegel and joined the Prussian State Police (preußischen Landespolizei) in 1934.

A year later, he transferred to the Reichswehr as a Fahnenjunker (officer candidate) and was eventually selected for flight training.

The event was hosted by the Reichssportführer Hans von Tschammer und Osten and bobsledder Werner Zahn who was also a pilot.

Other Luftwaffe officers attending this event included Günther Lützow, Walter Oesau, Karl-Heinz Greisert, Günter Schultze-Blank and Urban Schlaffer.

Staffel (3rd squadron) of Jagdgruppe 88, at the time headed by Oberleutnant Horst Lehrmann and based at Zaragoza Airfield.

[5] For his actions in Spain, he was awarded the Spanish Cross in Silver with Swords (Spanienkreuz in Silber mit Schwertern) on 14 April 1939.

Staffel was commanded by Hauptmann Walter Kienitz while I. Gruppe was headed by Major Gotthard Handrick.

[7] World War II in Europe began on Friday 1 September 1939 when German forces invaded Poland.

[10] The Armistice of 22 June 1940 ended the Battle of France and JG 26 began its relocation back to Germany for a period of rest and replenishment.

[15] Two days later, on a mission attacking 11 Group airfields, he claimed a Spitfire shot down southeast of Littlestone.

[16] On 15 September, on a mission to London, Losigkeit claimed his fifth aerial victory of the war and last during the Battle of Britain.

[21] Following his return from Japan, Losigkeit joined the staff with the General der Jagdflieger (Inspector of Fighters), an office held by Oberst Adolf Galland.

Fearing a British invasion of Norway, Adolf Hitler had ordered the Oberkommando der Marine (OKM—German Navy high command) to return the German battleships Scharnhorst and Gneisenau and the heavy cruiser Prinz Eugen from Brest in Brittany to German bases.

[24] At Trondheim, the unit was subordinated to the Jagdfliegerführer Norwegen, an office held by Oberst Carl-Alfred Schumacher.

On 25 February, Jagdgruppe Losigkeit provided fighter protection for Prinz Eugen, which had been damaged in the Channel Dash.

[26] During its existence, Jagdgruppe Losigkeit claimed one aerial victory, a Spitfire flown by Flight Lieutenant Sandy Gunn shot down by Leutnant Dieter Gerhard on 5 March.

Gruppe was withdrawn from combat operations in July 1942 and re-equipped with the Focke-Wulf Fw 190 fighter aircraft.

[33] On 17 April, the United States Army Air Forces (USAAF) VIII Bomber Command attacked the Focke-Wulf factories at Bremen, causing significant damage.

The former commander of I. Gruppe of JG 26, Major Johannes Seifert, had been taken off combat duty after his brother was killed in action.

Losigkeit had made his request for transfer because of substantial differences with the Jafü (Jagdfliegerführer—the commander of the fighter forces) of the 3.

Jagd-Division, Generalleutnant Werner Junck, had accused the fighter pilots of cowardice in combating the B-17 bombers.

[38] On 4 June, he flew his first mission on the Eastern Front, flying a fighter sweep 60 kilometers (37 miles) into Soviet airspace from Shatalovka.

Gruppe began flying missions in support of Operation Citadel, as part of the Battle of Kursk.

Gruppe again fought in the vicinity of Maloarkhangelsk where they claimed 17 aerial victories, including a Mikoyan-Gurevich MiG-3 by Losigkeit, for the loss of one severely shot up Fw 190 from 8.

[49] Losigkeit flew to Danzig-Langfuhr, present-day Wrzeszcz, in a Messerschmitt Bf 108 Taifun in late March 1945 to assist the retreat west.

There, he was handed a teleprinter message by Oberst Herbert Ihlefeld that he was ordered to Ostrau, present-day Ostrava, to take command of Jagdgeschwader 77 (JG 77—77th Fighter Wing) on 1 April 1945.

[50] He succeeded Major Siegfried Freytag in this capacity who had temporarily assumed this office after Oberstleutnant Erich Leie was killed in action on 7 March.

In 1953, Günter Hofé, an old friend of Losigkeit and member of the Service de Documentation Extérieure et de Contre-Espionnage) (French Secret Service), contacted Losigkeit which led to Hofé being recruited by the Gehlen Organization.

[55] Obermaier and Spick also list him with 68 aerial victories, including 13 on the Western Front, claimed in approximately 750 combat missions.

These sectors were then subdivided into 36 smaller units to give a location area 3 by 4 kilometers (1.9 by 2.5 miles) in size.