Bulgarian Air Force pilots help to plan an upcoming combat search and rescue mission as part of exercise Saber Guardian 17 at Plovdiv, Bulgaria, on July 10. By synchronizing each other's communications systems, flight patterns, and answering questions, a deeper level of understanding is reached by each side and interoperability between NATO Allies is acheived.

- Image ID: PTDAXD
Bulgarian Air Force pilots help to plan an upcoming combat search and rescue mission as part of exercise Saber Guardian 17 at Plovdiv, Bulgaria, on July 10. By synchronizing each other's communications systems, flight patterns, and answering questions, a deeper level of understanding is reached by each side and interoperability between NATO Allies is acheived.
Bob Collet / Alamy Stock Photo
Image ID: PTDAXD