JOINT BASE ANDREWS, MD -- Despite his efforts to shift the Air Force's focus to the Indo-Pacific, service Chief of Staff Gen. David Allvin may be ending his 39-year career while the Air Force instead structures itself to prioritize homeland defense. The Air Force’s top officer will officially retire from active duty on Dec. 1 , the service announced during his retirement ceremony here on Friday. Allvin served just two years in the position, cutting short a tenure which typically...