Boatswain's Mates with the USS San Diego prepare to lower a rigid inflatable boat (RIB) into the water as part of crane operations during Certification Exercise (CERTEX) off the coast of Southern California, June 13, 2014. CERTEX serves as the final at-sea period for the 11th Marine Expeditionary Unit and Amphibious Squadron 5. It is designed to strengthen the blue-green team's ability to operate together and to respond to various situations while deployed. (U.S. Marine Corps photo by Gunnery Sgt. Rome M. Lazarus/Released)