Mayor of Starokostiantyniv, Mykola Melnychuk addresses service members from participating countries during the opening ceremony for Clear Sky 2018 exercise at Starokostiantyniv Air Base, Ukraine, Oct. 8, 2018. The exercise is a joint and multinational exercise that will involve approximately 950 personnel from nine nations. (U.S. Air National Guard photo by Tech. Sgt. Charles Vaughn)
Pilots from the U.S Air Force and Ukrainian air force greet each other during the opening ceremony for the Clear Sky 2018 exercise at Starokostiantyniv Air Base, Ukraine, Oct. 8. (U.S. Air National Guard photo by Tech. Sgt. Charles Vaughn)
Ukrainian air force aircraft stage on the flightline at Starokostiantyniv Air Base, Ukraine, Oct. 8, 2018 prior to the opening ceremony for Clear Sky 2018. (U.S. Air National Guard photo by Tech. Sgt. Charles Vaughn)
A Sukhoi Su-27 flies over the flightline during the opening ceremony of exercise Clear Sky 2018 at Starokostiantyniv Air Base, Ukraine, Oct. 8. (U.S. Air National Guard photo by Tech. Sgt. Charles Vaughn)
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