The German flotilla was deployed Arranging to escort a convoy Patrolling retreating Escaping from Šibenik to Fiume ( present-day Rijeka ) .

It was designed Creating to push the Army of Republika Srpska ( VRS ) away from the city towards Popovo field and secure a supply Supply route via Rijeka Dubrovačka , which was gained Getting in early June as the Siege of Dubrovnik by the Yugoslav People 's Army ( JNA ) was lifted .