170327-N-XT039-047 PHILIPPINE SEA (March 27, 2017) Cmdr. William Riley, command chaplain assigned to the 31st Marine Expeditionary Unit (MEU), from Myerstown, Pennsylvania, trains Religious Programs Specialist Seaman Anthony Woodcasella, from Norwell, Massachusetts, on administering rites during a certification exercise (CERTEX) mass casualty drill aboard the amphibious assault ship USS Bonhomme Richard (LHD 6). A mass casualty drill is an exercise conducted to ensure medical responders can quickly and efficiently provide treatment to injured personnel. Bonhomme Richard, flagship of the Bonhomme Richard Expeditionary Strike Group, with embarked 31st MEU, is on a routine patrol, operating in the Indo-Asia-Pacific region to enhance warfighting readiness and posture forward as a ready-response force for any type of contingency. (U.S. Navy photo by Mass Communication Specialist Seaman Jesse Marquez Magallanes/Released)