 By 29 May , the battalions of Adriatic Command were in their garrison locations : the 6th Battalion at Mostar , the 7th Battalion at Trebinje , and the 10th Battalion in the Dubrovnik area . The other two Adriatic Command battalions were deployed to <unk> and <unk> far to the west . The 18th Battalion was allocated as a reserve and was garrisoned in Mostar . Main Ustaše Headquarters was tasked to recruit one battalion for duties within the Adriatic Command area . Home Guard battalions had a standard structure , consisting of a headquarters company , three infantry companies , a machine gun platoon and a communications section , while battalions of the Ustaše Militia consisted of a headquarters , three companies and a motorised section . Even after the establishment of NDH authorities in eastern Herzegovina , Italian forces maintained their presence in the region . The <unk> Regiment of the 32nd Infantry Division Marche remained garrisoned in Trebinje , with the 56th Regiment based in Mostar . The 49th <unk> Legion ( <unk> ) were also stationed in Bileća . The Italians maintained a troop presence in Nevesinje until 17 June , and conducted almost daily motorised patrols throughout eastern Herzegovina . 
