Maj. Gen. Rumen Radev, Bulgarian Air Force commander, left, U.S. Air Force Gen. Frank Gorenc, U.S. Air Forces in Europe and Air Forces Africa commander, center, and Lt. Gen. Constantin Popov, Bulgarian deputy chief of defense, wait to take the stage during a briefing to U.S. and Bulgarian Airmen about the Theater Security Package deployment during a visit to Graf Ignatievo Air Base, Bulgaria, May 11, 2015. The briefing, attended by local media, showcased partnered U.S. and Bulgarian commitment to the current and future security and stability of the region. Senior Airman Gustavo Castillo

- Image ID: HE9RBB
Maj. Gen. Rumen Radev, Bulgarian Air Force commander, left, U.S. Air Force Gen. Frank Gorenc, U.S. Air Forces in Europe and Air Forces Africa commander, center, and Lt. Gen. Constantin Popov, Bulgarian deputy chief of defense, wait to take the stage during a briefing to U.S. and Bulgarian Airmen about the Theater Security Package deployment during a visit to Graf Ignatievo Air Base, Bulgaria, May 11, 2015. The briefing, attended by local media, showcased partnered U.S. and Bulgarian commitment to the current and future security and stability of the region. Senior Airman Gustavo Castillo
PJF Military Collection / Alamy Stock Photo
Image ID: HE9RBB