It depends. Some VA Medical Centers now offers the Veteran Directed Home and Community Based service option. Family members, including the spouse can be hired to provide care. Check out this link and with your VA medical center to see if they offer. Not all do. http://www.va.gov/geriatrics/guide/longtermcare/Veteran-Directed_Care.asp
http://www.va.gov/geriatrics/guide/longtermcare/Veteran-Directed_Care.asp