Vigilant Ace 16

A firefighter from the 51st Civil Engineer Squadron performs first aid on a simulated victim of a mock building fire during Vigilant Ace 16 at Osan Air Base, Republic of Korea, Nov. 3, 2015. Roughly 16,000 U.S. personnel will participate in the annual peninsula-wide exercise taking place at eight different air bases across the ROK. (U.S. Air Force photo/Staff Sgt. Amber Grimm)

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Vigilant Ace 16

Firefighters from the 51st Civil Engineer Squadron respond to a simulated building fire during Vigilant Ace 16 at Osan Air Base, Republic of Korea, Nov. 3, 2015. The exercise is focused on linking U.S. and Korean operational planners with tactical-level operations to enhance the quality of exercises and ensure readiness for future operations. (U.S. Air Force photo/Staff Sgt. Amber Grimm)

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Vigilant Ace 16

Firefighters from the 51st Civil Engineer Squadron give a thumbs up to indicate completion of successful buddy checks prior to performing a secondary sweep of a simulated building fire during Vigilant Ace 16 at Osan Air Base, Republic of Korea, Nov. 3, 2015. Vigilant Ace 16 is a U.S. and ROK combined exercise designed to enhance operational and tactical level coordination through combined and joint combat training. (U.S. Air Force photo/Staff Sgt. Amber Grimm)

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Vigilant Ace 16

A firefighter from the 51st Civil Engineer Squadron performs simulated first aid on a fellow firefighter in the aftermath of a mock building fire during Vigilant Ace 16 at Osan Air Base, Republic of Korea, Nov. 3, 2015. The exercise tests the linkage between operational-level planners and tactical units, including increased ROK air force participation. (U.S. Air Force photo/Staff Sgt. Amber Grimm)

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Vigilant Ace 16

Simulated casualties lay out after being rescued from a mock building fire by 51st Civil Engineer Squadron firefighters during Vigilant Ace 16 at Osan Air Base, Republic of Korea, Nov. 3, 2015. Roughly 16,000 U.S. personnel will participate in the annual peninsula-wide exercise taking place at eight different air bases across the ROK. (U.S. Air Force photo/Staff Sgt. Amber Grimm)

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51st CES Firefighters respond during Vigilant Ace 16

Published Nov. 3, 2015