Heeresgruppe F
In August 1943, the 2nd Panzer Army was transferred to occupied Yugoslavia, where it was incorporated into Army Group F and engaged in anti-partisan operations against the Chetniks under Draža Mihailović and the communist Yugoslav Partisans under Josip Broz Tito. Despite engaging in several operations aimed to crush the partisan movement, particularly the communists, no clear victory was gained. Indeed, the partisan movement grew in size and equipment, particularly after the fall of Italian Fascism in the 1943 coup of 25 Luglio led to the mass defection and surrender of Italian units stationed in occupied Bosnia and Montenegro.