170401-N-IE397-046 ATLANTIC OCEAN (April 1, 2017) Command Master Chief Tyrone M. Blockton, assigned to the aircraft carrier USS Dwight D. Eisenhower (CVN 69), addresses the crew during the chief's 124th birthday ceremony. The ship and its carrier strike group are currently underway conducting a sustainment exercise in support of the optimized fleet response plan. (U.S. Navy photo by Mass Communication Specialist 3rd Class Christopher A. Michaels)