caption: Air Force Chief of Staff Gen. <PERSON>, center, his wife <PERSON>, and their son, Marine Corps 1st Lt. <PERSON>, left, chat with Marine Corps Gen. <PERSON>, chairman of the Joint Chiefs of Staff, before <PERSON>'s retirement ceremony at Joint Base Andrews, Md., June 24, 20156. <PERSON> became chief of staff in August 2012. DoD photo by Navy <PERSON> <PERSON>
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