(Left) Lance Cpl. Vince Perez, a team leader and (Right) Lance Cpl. Aaron Lende, a grenadier both from 1st Battalion, 4th Marine Regiment, 13th Marine Expeditionary Unit rush toward an objective, during Exercise Iron Fist 2013 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Jan. 31, 2013. During Iron Fist 2013, 13th Marine Expeditionary Unit, and JGSDF will spend three weeks participating in bilateral training to improve their interoperability, enhance military-to-military relations and sharpen skills essential. (U.S. Marine Corps photo by Lance Cpl. Demetrius Morgan/Released) - (Left) Lance Cpl. Vince Perez, a team leader and (Right) Lance Cpl. Aaron Lende, a grenadier both from 1st Battalion, 4th Marine Regiment, 13th Marine Expeditionary Unit rush toward an objective, during Exercise Iron Fist 2013 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Jan. 31, 2013. During Iron Fist 2013, 13th Marine Expeditionary Unit, and JGSDF will spend three weeks participating in bilateral training to improve their interoperability, enhance military-to-military relations and sharpen skills essential. (U.S. Marine Corps photo by Lance Cpl. Demetrius Morgan/Released)