Gen. Jeff Harrigian, U.S. Air Forces in Europe and Air Forces Africa commander, speaks with Bulgarian Air Force Col. Medoti Orlov, 3rd Air Force deputy commander, at Graf Ignatievo Air Base, Bulgaria, Oct. 21, 2020. Harrigian visited the leaders to discuss the importance of interoperability as NATO partners, and congratulated the Bulgarian Air Force on their acquisition of F-16 Fighting Falcon aircraft. (U.S. Air Force photo by Airman 1st Class Ericka A. Woolever)