The wars may not have been of their choosing (or ours, for that matter), but the service was.
A list of the U.S. Department of Veterans Affairs' Vet Centers in Arizona is here.
VA medical facilities in Arizona - Prescott, Phoenix, Tucson.
A list of VA benefits offices in Arizona is here.
The website of the Arizona Veterans Home (Phoenix) is here; Tucson facility (scheduled to open in late 2011) here.