AMC, ACC commanders perform realignment ceremony Published June 15, 2017 319th Air Base Wing Public Affairs GRAND FORKS AIR FORCE BASE, N.D. -- Tech. Sgt. Thomas Sullivan, 319th Medical Support Squadron laboratory NCO-in-charge, escorts Gen. Mike Holmes, Air Combat Command commander, during a tour of the 319th Medical Group June 15, 2017, on Grand Forks AFB, N.D. Holmes spent the day getting to know how the “Warriors of the North” meet the mission. (U.S. Air Force photo by Senior Airman Ryan Sparks)