Airborne Operation.
C17 flying over Bezmer Air Base for a joint force Airborne operation, during the exercise Saber Guardian, Bezmer Air Base, Bulgaria, Jul 17, 2017. Saber Guardian 17 is an annual, multi-national exercise that aims to assure our Allies and partners of the enduring U.S. commitment to the collective defense and prosperity of the Black Sea region. (Photo by Spc Aaron Bratcher). Original public domain image from Flickr