Air National Guard retired Col. Gregory Marston, a former Wing commander at Horsham Air Guard Station, Pa., reads the oath of enlistment to Staff Sgt. David Jacoby, a Council Rock High School teacher in Holland, Pa., in front of a A-10 Thunderbolt II here Sept. 26, 2018. Jacoby will be entering the vehicle operations field in the Air National Guard.

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Photo credit: © David Wa / Alamy / Afripics
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