Sailors assigned to the Very Shallow Waters Mine Counter Measures Command (VSWMCM) unhook a Battle-space Preparation Autonomous Underwater Vehicle (BPAUV) off the coast of California, during mine hunting and ocean mapping exercises conducted during the Navy's portion of Millennium Challenge 2002. MC-02 is this nation's premier joint integrating event, bringing together both live field exercises and computer simulation. U.S. Navy photo by Photographer's Mate 2nd Class Dawn C. Montgomery.