171108-N-BK384-293 MEDITERRANEAN SEA (Nov. 8, 2017) Gunner’s Mate 3rd Class Jonathan Zheng, left, instructs Seaman Daniel Roberts, on firing a M41A carbine during a live-fire exercise on the flight deck of the San Antonio-class amphibious dock transport ship USS San Diego (LPD 22). San Diego is deployed with the America Amphibious Ready Group and the 15th Marine Expeditionary Unit to support maritime security and theater security cooperation in efforts in the U.S. 6th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Justin A. Schoenberger/Released)