A Russian air force Su-27 Sukhois intercepts a simulated hijacked aircraft entering Russian airspace Aug. 27, 2013, at Exercise Vigilant Eagle 13. This exercise is the fifth in a series of cooperative exercises that provide an opportunity for Russia, Canada, and United States military personnel to enhance their international partnership and to cooperatively detect, track, identify, and follow a hijacked aircraft as it proceeds across international boundaries. U.S. Air Force photo by Tech. Sgt. Jason Robertson A Russian air force Su-27 Sukhois intercepts a simulated hijacked aircraft entering Russian airspace Aug. 27, 2013, at Exercise Vigilant Eagle 13. This exercise is the fifth in a series of cooperative exercises that provide an opportunity for Russia, Canada, and United States military personnel to enhance their international partnership and to cooperatively detect, track, identify, and follow a hijacked aircraft as it proceeds across international boundaries. U.S. Air Force photo by Tech. Sgt. Jason Robertson SHARE: Download: Full Size (1.21 MB) Credit: VIRIN: 462904-D-JGF19-974.jpg Photo Gallery