Airman Training Air Force Staff Sgt. Jonathan Preiser, an instructor with the 316th Training Squadron, engages with Staff Sgt. Terry Summerfield, a Marine Corps Detachment student, during the in-classroom portion of the Apprentice Electronic Signals Intelligence Analyst Course at Goodfellow Air Force Base, Texas, April 20, 2020. The classroom complied with the 17th Training Wing and federal safety regulations by shifting two-thirds of its material to digital delivery during the COVID-19 pandemic. SHARE: Download: Full Size (1.88 MB) Credit: Air Force Airman 1st Class Abbey Rieves VIRIN: 200420-F-DX596-1029M.JPG Photo Gallery