The Armed Boats Squadron Dubrovnik was established on 23 September to counter the Yugoslav Navy blockade .
The Armed Boats Squadron Dubrovnik is a volunteer military unit of the Croatian Navy consisting of 23 vessels of various sizes and 117 volunteers .
The Armed Boats Squadron Dubrovnik , a volunteer military unit of the Croatian Navy consisting of 23 vessels of various sizes and 117 volunteers , was established on 23 September to counter the Yugoslav Navy blockade .