Cincar Janko distinguished himself in the battle of Mišar (1806) and in the consequent pursuing of the defeated Bosnian army during which he even crossed into the Habsburg Empire to attack those who sought refuge there. Because of this incident, the Austrians will continue pressing for his trial. In late 1806 he took part in the liberation of Belgrade. In 1807 he was at the head of the Šabac garrison and fought in the skirmished on River Drina.