The Air Force needs to make some “adjustments” and “variations in [its] execution” to adapt to the current strategic environment and defend the U.S. from aggressors, the service’s newly appointed chief of staff said today. “The current strategic environment is one in which our national interests are threatened in a way that we have not seen in decades,” Gen. David Allvin said at his welcome ceremony at Joint Base Andrews, MD. “And the evolving character of war is one that...