Keywords: 130123-M-IO267-009 (8412035326).jpg U S Marine Corps Lance Cpl Jacob Blair assigned as a rifleman with the 1st Battalion 4th Marine Regiment 1st Marine Division provides security during maneuver under fire training as part of Exercise Iron Fist 2013 at Marine Corps Base Camp Pendleton Calif Jan 23 2013 The 13th Marine Expeditionary Unit and the Western Army Infantry Regiment Japan Ground Self-Defense Force spent three weeks participating in bilateral training to improve their interoperability enhance military to military relations and sharpen skills essential to crisis response DoD photo by Lance Cpl David Gonzalez U S Marine Corps/Released https //www flickr com/photos/39955793 N07/8412035326/ 130123-M-IO267-009 2013-01-23 10 42 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/8412035326 2016-09-03 09 33 29 United States Government Work 13th Marine Expeditionary Unit 1st Battalion 4th Marines I Marine Expeditionary Force Iron Fist 2013 Amphibious forces Japan Ground Self-Defense Force One-fourth |