sentences:  It was inactivated on 30 September 1990 at Griffiss Air Force Base, New York.The Division was activated at Malmstrom Air Force Base, Montana in November 1969, replacing the 28th Air Division in an Aerospace Defense Command (ADCOM) realignment and re-organization of assets.Assigned additional designation of 24th NORAD Region and 24th CONAD Region upon activation with reporting to the NORAD Combat Operations Center at the Cheyenne Mountain Complex, Colorado.