LANGLEY AIR FORCE BASE, Va. -- Lt. Col. Adrian Spain, 94th Fighter Squadron commander, speaks with Kenya Air Force Lt. Gen. Julius Waweru Karangi, Kenyan Armed Forces Vice Chief of the General Staff, June 7. Karangi visited Langley to gather a firsthand perspective of U.S. Air Force operations. (U.S. Air Force photo/Senior Airman Zachary Wolf)