Tech. Sgt. Peter J. Oliveri (left), noncommissioned officer in charge of seismic field maintenance for the Air Force Technical Applications Center, Patrick AFB, Fla., discusses seismic operations with Chief Master Sgt. Frank Batten, command chief of Air Combat Command, during the chief's visit to the nuclear treaty monitoring center Jan. 24, 2018. Oliveri was one of many AFTAC Airmen who briefed Batten on the center's global mission. ( Air Force

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