Clear Sky Cultural Day
The Medzhybiz Fortress in Ukraine started as a wooden castle in the year 1146 and served as a bulwark against the Ottoman expansion in the 1540s. U.S. and Ukrainian airmen visited the fortress as part of cultural day activities during Clear Sky 2018. (U.S. Air Force photo by Maj. Tristan Hinderliter)

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Photo by: Maj. Tristan Hinderliter |  VIRIN: 181014-F-GT247-0003.JPG