During the Ottoman invasion , two Serbian armies were set up Reforming_a_system to defend Defending the Despotate , 1st army being commanded Control by Nikola Skobaljić in Dubočica , near Leskovac , and the 2nd army being on the banks of Sitnica river in Kosovo .

The Battle Hostile_encounter of Kruševac was fought Hostile_encounter on October 2 , 1454 between the forces Causation of the Serbian Despotate , allied Collaboration with the Kingdom of Hungary , and the Ottoman Empire .