Keywords: US Navy 100915-N-8335D-249 Marines conduct weapons exercise aboard USS Harpers Ferry.jpg en PHILIPPINE SEA Sept 15 2010 Marines from the 31st Marine Expeditionary Unit 31st MEU embarked aboard the amphibious dock landing ship USS Harpers Ferry LSD 49 practice shooting their M-14 carbines and M-16 rifles Harpers Ferry part of the permanently forward-deployed Essex Amphibious Ready Group ARG is on patrol in the western Pacific Ocean participating in Valiant Shield 2010 an integrated joint-training exercise designed to enhance interoperability between U S forces U S Navy photo by Mass Communication Specialist 1st Class Richard Doolin/Released 2010-09-15 100915-N-8335D-249 Navy http //www navy mil/view_image asp id 91779 U S Navy photo by Mass Communication Specialist 1st Class Richard Doolin PD-USGov-Military-Navy Aboard USS Harpers Ferry LSD-49 Valiant Shield 2010 31st Marine Expeditionary Unit Weapon training in the United States Marine Corps Advanced Combat Optical Gunsight on M16 rifle |