Col. Tom Walter, left, 315th Maintenance Group Commander, Joint Base Charleston, S.C. re-administered the oath of office to Col. William Roff, newly named Readiness and Integration Organization Commander of Detachment 8, Stuttgart, Germany May 15, 2020, via virtual video. The unit training assembly (UTA) was held virtually in May due to COVID-19.(U.S. Air Force photo/Senior Airman William Brugge)