KAHUKU TRAINING AREA, Hawaii - Republic of Korea Marines with 1st Company, 1st Battalion, 3rd Regiment, prepare to step off on a movement conduct a simulated assault of radio hill at the Kahuku Training Area, Hawaii, July 11, 2014. The ROK Marines are attached to Company Landing Team 1 during the 2014 Rim of the Pacific exercise, and are partnered with U.S. Marines as well as attachments from the New Zealand Army. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in the series that began in 1971. (U.S. Marine Corps Photo by Cpl. Matthew Callahan) - KAHUKU TRAINING AREA, Hawaii - Republic of Korea Marines with 1st Company, 1st Battalion, 3rd Regiment, prepare to step off on a movement conduct a simulated assault of radio hill at the Kahuku Training Area, Hawaii, July 11, 2014. The ROK Marines are attached to Company Landing Team 1 during the 2014 Rim of the Pacific exercise, and are partnered with U.S. Marines as well as attachments from the New Zealand Army. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in the series that began in 1971. (U.S. Marine Corps Photo by Cpl. Matthew Callahan)