U.S. Marine Corps Lance Cpl. Bob Mose, left, and Cpl. J.B. Proctor, with India Company, 3rd Battalion, 7th Marine Regiment, toss bricks into the deep end during aquatic training in the base swimming pool at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., May 19, 2009. Aquatic training helps Marines strengthen their skills in the water between swim qualifications.