In October Vukovar was captured and 80 % of Croatian forces were destroyed or captured . Many atrocities were committed by the Yugoslav army in the city , including the Velepromet concentration camp , Vukovar massacre , etc . In mid-October 1991 , Yugoslav ground forces , supported by naval and air forces , attacked the city of Dubrovnik and the Konavle area where Croats had strongholds , starting the Siege of Dubrovnik . By 6 December , the Yugoslav Army had neutralized all Croat formations in the Konavle area , but Dubrovnik had not been captured
Vukovar massacre
Vukovar massacre
Yugoslav People's Army