Based on the non-fiction book originally titled "Under the Sabers: The Unwritten Code of Army Wives", by Tanya Biank, the series is set at fictional Fort Marshall, at the old Charleston Naval Base, in North Charleston, South Carolina, home to the also fictional 23rd Airborne Division, a component unit of the XVII Airborne Corps. The show itself is filmed in various locations such as the Charleston Air Force Base (now Charleston Field) and the sound stage off Dorchester Road in the City of North Charleston. Some scenes have been shot in and around the City of Charleston. In Season 5 the 23rd is disbanded and the 32nd Airborne Division becomes the new resident unit, having moved to Fort Marshall from the fictional Fort Hope. The 23rd Airborne Division, XVII Airborne Corps and Fort Marshall are presumably based on the actual 82nd Airborne Division, XVIII Airborne Corps based at Fort Bragg, home of the airborne divisions and the United States Army Special Operations Command. In Season 7 Fort Marshall was merged with an Air Force base, mirroring the mergers of several Army posts with nearby Air Force bases as a result of the 2005 Base Realignment and Closure Commission. Mercer Army Medical Center is the fictional hospital on post where some of the characters worked.