- Period:
- Second World War (1939-1945)
- Rank:
- Major (Squadron Leader)
- Unit:
- Kommanduer, II. Gruppe, Kampfgeschwader 4 "General Wever", Luftwaffe
- Awarded on:
- August 27th, 1940
Awarded for his achievements as commander of a bomber Gruppe. He and his unit particularly distinguished themselves during the Western campaign, when Massenbach's bombers carried out attacks against the Dutch Peer position and enabled the German units on the ground to breach the enemy fortifications here. Massenbach himself also personally participated in 25 sorties.