operation Military_operation unk ( ) was a military offensive undertaken Action by the croatian army ( `` hrvatska vojska '' UNK hv ) against the yugoslav people 's army ( `` unk narodna armija '' UNK jna ) and sao western slavonia territorial defense Defending forces in the sava river valley , in the region of western slavonia during the croatian war of independence .

in the final days of the battle , the evacuation of the vukovar hospital was negotiated Communication between croatian authorities , the jna and the european community monitor Scrutiny mission in cooperation with the international committee of the red cross ( icrc ) .