Shortly after the bombardment , as the Croatian Serb TO and Serbian Volunteer Guard ( SDG ) paramilitaries attacked the police station in Dalj , the Croatian police requested the JNA 's assistance in terminating the TO attack . As the JNA deployed , it reported receiving gunfire from the ZNG 1st Company of the 1st Battalion of the 3rd Guards Brigade in Erdut as it moved towards of road between Bogojevo and Dalj and returning fire before proceeding to Dalj . Conversely , the International Criminal Tribunal for the former Yugoslavia ( ICTY ) witness of the event claimed that the JNA fired against civilian homes in Erdut unprovoked . The same day , the JNA tanks entered Erdut . After the takeover , Croatian Serbs established the government of the SAO Eastern Slavonia , Baranja and Western Syrmia ( SAO SBWS ) — a breakaway territory in Croatia — in Erdut , and Serbia 's Special Anti-Terrorist Unit , specifically its commander Radovan Stojičić , set up an SDG camp in the village , run by Željko Ražnatović . The second half of 1991 saw the fiercest fighting of the war , as the 1991 Yugoslav campaign in Croatia culminated in the Siege of Dubrovnik , and the Battle of Vukovar . At the same time , Croatian Serb authorities began systematically expelling non-Serb civilians in areas under their control . The expulsions in the area of Erdut and elsewhere in eastern Slavonia were primarily motivated by the aim of changing the ethnic composition in favour of Serbs and the resettling of Serb refugees who had fled western Slavonia following operations Swath-10 and Hurricane-91
attacked the police station in Dalj
Dalj massacre
Erdut killings