As a military title, Sirdar-Bahadur was an Indian military distinction. it is given to various Persian and Turkish Army leaders. Sirdar was the official title of the commander-in-chief of the Anglo-Egyptian army, and also denoted the Rank of Field Marshal of the Army of Afghanistan and Persia (in Persia, it was also used to denote the Prime Minister). The title, Serdar, is also common amongst Ottomans (Imperial Turks) to refer to commander-in-chief (of an army). The Serbs adopted it from the Ottomans (e.g. Serdar Janko Vukotić).