Zerstörergeschwader 26 (ZG 26) "Horst Wessel" was a Luftwaffe heavy fighter wing of World War II. Formed on 1 May 1939, ZG 26 was initially armed with the Messerschmitt Bf 109 single-engine interceptor due to production shortfalls with the Messerschmitt Bf 110 Zerstörer-class aircraft. The wing served on the dormant Western Front during the Phoney War stage in 1939 and 1940. During this phase ZG 26 was equipped with the Bf 110. It formed part of Luftflotte 2 and fought in the Battle of the Netherlands, Battle of Belgium and Battle of France in May and June 1940. The wing continued to operate in the Battle of Britain, albeit in a much reduced role owing to losses.