Two other warships captured by Croatia, the Osa I class RČ-310 "Velimir Škorpik" and the Shershen class TČ-219 "Streljko" were not regarded as seaworthy and were eventually sunk by the missile boats "Kralj Petar Krešimir IV" and OBM-41 "Dubrovnik" in October 1994, during a live firing exercise known as Operation "Posejdon". The main actions of the new Croatian navy during the war of independence were the lifting of the Yugoslav blockade of Dalmatia and the relief of Dubrovnik.