U.S. Air Force F-15C instructor pilots with the 173rd Fighter Wing make their way to a simulated parachute drag during water survival training at Cultus Lake, Oregon, July 25, 2019. The training occurs every three years and is necessary for flying and training the F-15C over water, something these pilots do when using the ranges over the Oregon and California Coast. (U.S. Air National Guard photo by Master Sgt. Jefferson Thompson)