Kampfgeschwader 77 was a Luftwaffe bomber wing during World War II. Its units participated on all of the major fronts in the European Theatre until its dissolution in 1944. It operated all three of the major German bomber types; the Dornier Do 17, Heinkel He 111 and the Junkers Ju 88.

The Dornier Do 17 is a twin-engined light bomber produced by Dornier Flugzeugwerke for the German Luftwaffe during World War II. Designed in the early 1930s as a Schnellbomber intended to be fast enough to outrun opposing aircraft, the lightly built craft had a twin tail and "shoulder wing". Sometimes referred to as the Fliegender Bleistift or the Eversharp it was popular among its crews due to its handling, especially at low altitude, which made the Do 17 harder to hit than other German bombers.