The Academy of Military Science (AMS) is a 6-week officer commissioning program of the United States Air Force. AMS is held at Maxwell Air Force Base in Montgomery, Alabama, with the purpose of training and commissioning Air National Guard officers only. AMS was originally located at McGhee Tyson Air National Guard Base, outside Knoxville, Tennessee. It was moved to Maxwell in 2009. The move was initiated by a question in 2006 from the Air Force chief of staff about the potential of a "shared common experience" at a single location among active-duty, Guard and Reserve officer candidates.