Thracian Fall 2019 exercise kicks off in Bulgaria
A Bulgarian jumper performs a static-line jump from a U.S. Air Force C-130J Super Hercules aircraft over Plovdiv, Bulgaria, Sept. 24, 2019. The military free fall course is a central focus of Thracian Fall 2019. (U.S. Air Force photo by Staff Sgt. Kirsten Brandes)