170328-N-TU910-412 COLOMBO, Sri Lanka (March 28, 2017) A Marine assigned to the 11th Marine Expeditionary Unit (11th MEU) teaches Sri Lankan navy sailors about the M240B machine gun during a weapons familiarization event aboard the amphibious dock landing ship USS Comstock (LSD 45). (U.S. Navy photo by Mass Communication Specialist 3rd Class Abby Rader/Released)