The 7. "Staffel", and elements of the support ground personnel, were relocated to Grottaglie airfield near Taranto in Apulia on 5 April 1941. 7/JG 26 flew in support of the German invasion of Yugoslavia and Greece on 6 April. In support of this invasion, the pilots attacked the airfield at Podgorica. Müncheberg claimed a Yugoslav Hawker Fury biplane of "Independent Fighter Eskadrila", 81 (Bomber) Grupa, "Jugoslovensko Kraljevsko Ratno Vazduhoplovstvo" (JKRV - Yugoslav Royal Air Force) on 6 April 1941. Its pilot "Porucnik" (First Lieutenant) Milenko Milivojevic was killed. He claimed another Fury and a Breguet 19 destroyed on the ground, but he was only given credit for the first aircraft destroyed in aerial combat. The two Furys were in fact Avia BH-33 biplanes.