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Master Sgt. Troy Verbowski, crew chief from the 134th Air Refueling Wing, inspects the first stage fan blades on a KC-135R Stratotanker assigned to the 134th ARW, Tennessee Air National Guard during exercise Saber Guardian 19, June 21, 2019 at Sofia Airport, Bulgaria. The exercise promotes regional stability and security, while increasing readiness, strengthening partner capabilities and fostering trust. The combined training opportunities that the exercise provides greatly improve interoperability among participating allies and partners. (U.S. Air National Guard photo by Tech. Sgt. Daniel Gagnon)
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