sentences:  Although Jevđević recognised the authority of Mihailović, who was aware of and approved of his collaboration with Axis forces, a number of factors effectively rendered him independent of Mihailović's command, except when he worked closely with Ilija Trifunović-Birčanin, Mihailović's designated commander in Dalmatia, Herzegovina, western Bosnia and southwestern Croatia.During the joint Italian–Chetnik Operation Alfa, Jevđević's Chetniks, along with other Chetnik forces, were responsible for killing between 543 and 2,500 Bosnian Muslim and Catholic civilians in the Prozor region in October 1942.They also participated in one of the largest Axis anti-Partisan operations of the war, Case White, in the winter of 1943.