Zerstörergeschwader 76 (ZG 76) was a Zerstörer (heavy fighter; lit. "destroyer") geschwader (wing) of the German Luftwaffe during World War II. The wing operated the Messerschmitt Bf 109 in the early phases of World War II, then the Messerschmitt Bf 110 for the duration of the war. Created in 1939 based on the Zerstörer concept advocated by Hermann Göring, commander-in-chief of the Luftwaffe, the wing was only partially equipped with the Bf 110. Some units were designated Jagdgruppe 76 and flew the Messerschmitt Bf 109 during the Phoney War. Those elements (gruppen, or groups) that operated the Bf 110 fought in the Invasion of Poland in September 1939 which began World War II. Thereafter, ZG 76 fought in the Battle of the German Bight in December 1939 which encouraged RAF Bomber Command to switch to night bombing. In April 1940 it supported the German invasion of Denmark and fought in the Norwegian Campaign. From May to October 1940 ZG 76 served in the Battle of Belgium, Battle of France and Battle of Britain. Elements of the wing fought in the German invasion of Yugoslavia, Battle of Greece and Battle of Crete. The majority of the gruppen were disbanded in late 1941 after serving in the early stages of the Defence of the Reich by defending the German-occupied Low Countries. In 1943 ZG 76 was reformed. The Oberkommando der Luftwaffe felt the heavy fighters could be successful against the unescorted United States Army Air Force bombers. The introduction of long-range US fighter escorts in 1944 resulted in heavy casualties and operations were scaled down until the final disbandment of ZG 76 in September 1944. The remaining pilots were transferred to the Bf 109 wing Jagdgeschwader 76. Formation Zerstörergeschwader 76 was formed on 1 May 1939 from Zerstörergeschwader 144. I. Gruppe and II. Gruppe formed without a Geschwaderstab. The II. Gruppe was initially equipped with the Messerschmitt Bf 109 and was known as Jagdgruppe 176, while it retained its heavy fighter identity officially, then re-equipped with the Messerschmitt Bf 110 over the winter, 1939/40. The organisation and equipment of the Zerstörergeschwader units was typical at this time. Zerstörergeschwader 26 (ZG 26—26th Destroyer Wing) was operated and organised in a similar fashion. The Geschwaderstab was created on 15 April 1940 in Köln-Wahn. The III. Gruppe was raised on 26 June 1940 in Trier-Euren with the Messerschmitt Bf 110. World War II Invasion of