 These disagreements lead to uprisings being quashed in Montenegro and Novi Pazar due to poor coordination between the resistance forces.Mihailović's fears for ongoing reprisals became a reality with two mass murder campaigns conducted against Serb civilians in Kraljevo and Kragujevac, reaching a combined death toll of over 4,500 civilians.Reprisals in the NDH were also in full swing with thousands of Serb civilians being killed by the Ustashe.