Airman 1st Class Paul Prohaszka, a member of the Structures flight of the 127th Civil Engineer Squadron, works in the wood shop at Selfridge Air National Guard Base, Mich., May 4, 2018. Michigan Citizen-Airmen at Selfridge conducted a four-day training drill at Selfridge to refresh career-specific and warfighting skills. (U.S. Air National Guard photo by Tech. Sgt. Dan Heaton)