A 20th Fighter Wing (FW) Airman uses hand signals to communicate with an F-16 Viper pilot during an agile combat employment (ACE) exercise at Joint Base Charleston, South Carolina, Jan. 25, 2021. The ACE exercise was part of an ongoing initiative to train and maintain teams of multicapable Airmen, allowing the 20th FW to operate in more austere environments. (U.S. Air Force photo by Staff Sgt. Destinee Sweeney)