Staff Sgt. David Chorpeninng, 366th Fighter Wing survival, evasion, resistance and escape specialist, pops a M-18 smoke grenade Sept. 26, 2019, at Saylor Creek Bombing Range, Idaho. The smoke grenade, emits a colored smoke and can be used in place of the flare for daytime signaling. (U.S. Air Force photo by Airman Antwain L. Hanks)

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Photo by: Airman Antwain L. Hanks |  VIRIN: 190926-F-DJ879-0282.JPG