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Colombian Air Force Staff Sgt. Johan Lopez Ramirez, Kfir fighter jet crew chief, conducts pre-flight inspection on a Colombian Kfir fighter jet at Davis-Monthan Air Force Base, Ariz., July 7, 2018. Six Colombian Kfirs from the Combat Squadron No. 111, arrived to train with the 354th Fighter Squadron’s A-10 Thunderbolt IIs and the 162nd Wing’s F-16s in preparation for Red Flag 18-3. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)