The Battle of Baltim (also Battle of Damietta, Battle of Baltim–Damietta, Battle of Damietta–Baltim or Battle of Damietta – El Burelos) was fought between the Israeli Navy and the Egyptian Navy on October 8–9, 1973, during the Yom Kippur War. It took place off the Nile delta, between Baltim and Damietta. The battle erupted when six Israeli Sa'ar class missile boats heading toward Port Said were engaged by four Egyptian Osa class missile boats coming from Alexandria. It lasted about forty minutes. The Osas fired Styx missiles, missed, and begun withdrawing back to Alexandria when the Israelis began to give chase. Two Osas were sunk by Gabriel missiles within a span of 10 minutes, and a third was sunk twenty-five minutes later. The fourth made it back to base.