Staff Sgt. David Chorpeninng, 366th Fighter Wing survival, evasion, resistance and escape specialist, explains to Capt. Scott Hatter, 389th Fighter Squadron aircrew how to properly use a MK-124 marine smoke and illumination signal Sept. 26, 2019, at Saylor Creek Bombing Range, Idaho. Aircrew must know how to signal aircraft incase they cannot provide the correct coordinates for retrieval. (U.S. Air Force photo by Airman Antwain L. Hanks)

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Photo by: Airman Antwain L. Hanks |  VIRIN: 190926-F-DJ879-0022.JPG