Aug. 12, 2022 Michigan Airmen, Partners Achieve Milestone During Northern Agility ALPENA, Mich. – Less than six weeks after conducting the first highway-based A-10 Thunderbolt II Integrated Combat Turns (ICTs), Airmen from the 127th Wing, Selfridge Air National Guard Base, Michigan, achieved a milestone for the Air Force’s Agile Combat Employment (ACE) doctrine Aug. 8-12,