In the Gulf of Aden, recent attacks have brought the anti-terrorist Combined Task Force 150 into action. The multinational unit, part of Washington's Operation Enduring Freedom, is based in Djibouti and has come to the aid of many ships attacked by pirates. CTF 150 is commanded by Canadian Commodore Bob Davidson and operates in the Gulf of Aden, Gulf of Oman, the Arabian Sea, Red Sea and the Indian Ocean. In late August, it announced a string of waypoints marking a Maritime Security Patrol Area or safe corridor, which warships will patrol while coalition aircraft fly overhead. __