Lt. Col. Rhett Hierlmeier, 61st Fighter Squadron commander, briefs Under Secretary of the Air Force Matthew Donovan on the capabilities of the F-35 Lightning II at Luke Air force Base, Ariz., June 29, 2018. Donovan learned about the aircraft, mission and Airmen at Luke.

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Keywords: 61st, air, america, archive, armed, army, base, defence, donovan, fighter, force, forces, luke, matthew, military, navy, reportage, secretary, service, serviceman, servicemen, soldier, states, united, usa, wing