After enduring months of intense heat, long hours, dust and Spartan living conditions since their arrival in May, Army postal units have nearly completed turnover of military postal operations to contractors. The turnover began in October, when the first KBR postal workers began to arrive, said Lt. Col. Steven Heggen, commander of the 461st Personnel Services Battalion, an Army Reserve unit from Decatur, Ga. Originally, the Joint Military Mail Terminal here was manned exclusively with soldiers from the 461st PSB and units from the National Guard, Army Reserve and active Army, numbering about 300 in all. Now, except for a...