 Zaharije Ostojić ( Serbian Cyrillic : Захарије Остојић ; 1907 – April 1945 ) was a Montenegrin Serb military officer who served as the chief of the operational , organisational and intelligence branches of the Chetnik Supreme Command led by Draža Mihailović in Yugoslavia during World War II . He was a major in the Yugoslav Royal Air Force prior to the Axis invasion of Yugoslavia , and was involved in the coup that deposed Prince Paul of Yugoslavia on 27 March 1941 . After the coup , he escorted Prince Paul to exile in Greece , and was in Cairo at the time of the invasion in April . In September 1941 , he was landed on the Italian @-@ occupied Montenegrin coast along with a British Special Operations Executive ( SOE ) liaison officer and two companions . He escorted the SOE officer to the Territory of the Military Commander in Serbia and introduced him to the Yugoslav Partisan leader Josip Broz Tito then Mihailović . Ostojić soon became Mihailović 's chief of staff , and after the German attempt to capture the Chetnik leader during Operation Mihailović in December 1941 , brought the Chetnik Supreme staff to Montenegro where they were re @-@ united with Mihailović in June 1942 . During the remainder of 1942 , Ostojić launched a counter @-@ attack against Ustaše troops of the Independent State of Croatia returning to the eastern Bosnian town of Foča where they were expected to continue their genocidal anti @-@ Serb policies . As many as 2 @,@ 000 local Muslims were subsequently killed in the town by forces under Ostojić 's command . Ostojić later oversaw large @-@ scale massacres of civilians and burning of Muslim villages in the border region between Montenegro and the Sandžak . 
