150617-N-IC565-037 INDIAN OCEAN (June 17, 2015) Electrician’s Mate 2nd Class Adam Wilson conducts training on proper use of an MCU-2P gas mask during a chemical, biological, and radiological (CBR) drill aboard the Wasp-class amphibious assault ship USS Essex (LHD 2). The Essex Amphibious Ready Group is operating in the U.S. 7th fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class Bradley J. Gee/Released)