The oil tanker Maran Castor is under way in the Arabian Sea Dec. 11, 2012, during exercise Lucky Mariner 13.
Lucky Mariner is an annual U.S. Navy, coalition and commercial shipping exercise in the U.S. 5th Fleet area of responsibility designed to integrate civil-military responses to global shipping threats. (DoD photo by Mass Communication Specialist 3rd Class Jumar T. Balacy, U.S. Navy /Released). Original public domain image from Flickr