Sgt. 1st Class Stacy Johnson, a crew chief with the 2nd Battalion of the 224 Aviation Regiment, Virginia Army National Guard, prepares a UH-60 Black Hawk Helicopter for a spritz cleaning after having flown near a volcano during Operation Beyond the Horizon April 28, 2014. "Anytime we fly near areas with saltwater or volcanic ash in the air we need to clear out the engines to ensure the birds run well," Johnson said. ( Army National Guard photo by Sgt. Alejandro S. Smith-Antuna) Beyond the Horizon 2014 140428-Z-UX428-156

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Keywords: .., armed, army, bthgtm14, conflict, forces, horizon, horizons, military, south, states, united, ussouthcom, war