Exercise Vigilant Ace 18: Base Defense

by Staff Sgt. Alex Fox Echols III, 51st Fighter Wing Public Affairs
Stripes Korea

OSAN AIR BASE, Republic of Korea -- A Republic of Korea defender concludes his shift change during exercise Vigilant Ace 18 at Osan Air Base, Republic of Korea, Dec. 5, 2017. During the week-long exercise, the U.S. and ROK are combining their forces, training on mutual support procedures, further improving understanding and trust between the two nations, and ensuring interoperability.

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