U.S. Marine Corps Staff Sgt. Justin Urbany (Right,) 81mm mortar section leader, 1st Battalion, 4th Marine Regiment, gives a range safety brief to Japan Ground Self-Defense Force Soldiers, prior to a live-fire mortar range, aboard Marine Corps Base Camp Pendleton, Calif., Feb. 1, 2016. This mortar range is a part of the second of four phases of training the soldiers of the JGSDF and USMC will be conducting during Exercise Iron Fist. This phase focuses on small unit skills and tactics before moving on to larger scale operations. - U.S. Marine Corps Staff Sgt. Justin Urbany (Right,) 81mm mortar section leader, 1st Battalion, 4th Marine Regiment, gives a range safety brief to Japan Ground Self-Defense Force Soldiers, prior to a live-fire mortar range, aboard Marine Corps Base Camp Pendleton, Calif., Feb. 1, 2016. This mortar range is a part of the second of four phases of training the soldiers of the JGSDF and USMC will be conducting during Exercise Iron Fist. This phase focuses on small unit skills and tactics before moving on to larger scale operations.