LANGLEY AIR FORCE BASE, Va. -- U.S. Air Force Capt. Justin Eagan, 71st Fighter Squadron pilot, escorts U.S. Army Col. Glenn Grothe, 733d Mission Support Group commander, to their jet for an F-15 Eagle incentive flight July 6. Colonel Grothe took the opportunity to familiarize himself with the aircraft and its unique capabilities as the Air Force and Army join forces under Joint Base Langley-Eustis. (U.S. Air Force photo/Senior Airman Jarrod Chavana)