National American University, sometimes known as NAU, is a private online institution of higher education that is also physically present at Ellsworth Air Force Base and Naval Submarine Base King's Bay. The National American University Holdings, Inc. is the owner of the property (NAUH). The assets of Henley-Putnam University were bought by NAU in 2018, and the university now provides strategic security degree programmes. The vast majority of NAU's academic programmes follow an 11-week quarter format and begin classes on a monthly basis. The Higher Learning Commission has given the institution its seal of approval.