U.S. Air Force Chief of Staff Gen. David Allvin retired halfway through his expected term as the service's top officer. (Staff Sgt. Olivia Stecker/Air Force) Outgoing Air Force Chief of Staff Gen.
Outgoing Air Force Chief of Staff Gen. David Allvin bid farewell to the service Friday in a retirement ceremony at a hangar in Joint Base Andrews, Maryland. While the event does not mark the exact end ...