Alaska Air National Guard Chief Master Sgt. Paul Martzall, 176th Maintenance Group Quality Assurance superintendent, explains quality assurance practices and procedures for the mission assurance exercise at Joint Base Elmendorf-Richardson, Alaska, Feb. 25, 2020. As a member of the Wing Inspection Team, Martzall evaluates the effectiveness of established procedures during a contested environment. (U.S. Air National Guard photo by Senior Airman Louis Velasco)

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Photo by: Senior Airman Louis Velasco |  VIRIN: 200225-Z-ZU973-1025.JPG