FORT HUACHUCA — There’s a special group of Army patients at this Southern Arizona Army post — warriors in transit. They are active duty soldiers, National Guard members and Reservists who have suffered physical or emotional problems while serving in combat, have been injured while on duty or have other serious illnesses as the Army’s medical community takes a holistic approach to either return them to a unit or prepare them to return to civilian life. Much of what is part of a Warrior Transition Unit is fallout from health care problems that came to light last year at the...