Senior Airman Dylan B. Melone (right), a clean room technician with the Air Force Technical Applications Center, shows Gen. Mike Holmes, commander of Air Combat Command, a transmission electron microscope grid he uses to accomplish AFTAC's trace particle analysis mission. Holmes visited the nuclear treaty monitoring center, Patrick AFB, Fla., Jan. 24, 2018. ( Air Force

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Keywords: 25th, aftac, air, america, armed, defence, employee, federal, force, forces, government, military, service, states, united, usa