== Not "forced from his adviser position" == 

 I have deleted the above claim from the "Vietnam War Service" section. If you restore it, please give an appropriate citation (it's been marked "citation needed" since Dec. 2011). 

 As explained in Sheehan's book, Vann's commander Harkins wanted to fire him but relented on the advice of his other officers. Vann had just won the Distinguished Flying Cross and "firing Vann right after decorating him was awkward and would certainly make the scandal in the press that much worse" (Sheehan 330). Thus Vann served out his full one-year tour (331).