Serbian Army (revolutionary)
The Serbian Army was the military force of Revolutionary Serbia, active during the First Serbian Uprising (1804–13) fighting against the Ottoman Empire. Established at first as a peasant army against the oppressive Dahije who had wrested the Pashalik of Belgrade from the Sultan, it became a resistance movement to the Ottomans which managed to create an independent state, restoring Serbian statehood in the Central Balkans after centuries of Ottoman rule.
Source: Wikipedia — Serbian Army (revolutionary) (CC BY-SA 4.0)