Chilean Tech. Sgt. Benjamin Zepeda stands next to a Chilean F-16 Fighting Falcon while he demonstrates hand signals to stop a crane that is lifting an aircraft during an objective for a Crash Damaged Disabled Aircraft Recovery course at Cerro Moreno Air Base in Antofagasta, Chile, June 7, 2018. The two-week CDDAR mirrored the standard U.S. Air Force CDDAR course. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)