U.S. Air Force Staff Sgt. Garrett Lucas, 673d Communications Squadron radio frequency supervisor of forward support for Agile Communications support, connects communications equipment for Agile Combat Employment (ACE) assembly during a Polar Force (PF) 20-1 exercise at Joint Base Elmendorf-Richardson, Alaska, Sept. 30, 2019. PF 20-1 is designed to exercise multiple elements of the ACE concept of operations. These elements include generating fifth-generation combat power from austere locations, command and control using non-traditional methods, and rapid airlift capabilities to sustain a forward operating location. The ACE concept enables the 3rd Wing to deliver lethal airpower for the United States, even in a contested environment.