Air Force Capt. Jacob Allen, a 35th Fighter Squadron F-16 Fighting Falcon pilot, prepares to take off during exercise Max Thunder 15-1 at Gwangju Air Base, South Korea, April 21, 2015. Jacob was reunited with his brother, Marine Corps Capt. Jarrod Allen, a Marine Fighter Attack Squadron 225 F/A-18 Hornet pilot, during the exercise. Max Thunder is a large-scale employment exercise designed to increase interoperability between U.S. and South Korea forces, and ultimately enhance commitments to maintain peace in the region. (U.S. Air Force photo/Senior Airman Taylor Curry)