operation Military_operation unk ( ) was a military offensive undertaken by the croatian army ( `` hrvatska vojska '' , or hv ) against the sao western slavonia territorial defense Defending forces on unk mountain in western slavonia .

at the same time , the croatian army ( `` hrvatska vojska '' UNK hv ) and the croatian defence council ( `` hrvatsko unk unk '' UNK hvo ) were engaging the vrs in operation unk 2 further to the southeast .

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 .