(Reuters) – U.S. author Tim O’Brien was awarded the Pritzker Military Library Literature Award, the first fiction writer to win the six-year-old prize, the Pritzker Military Library in Chicago said on Tuesday. O’Brien, a Vietnam War veteran, is best known for his 1990 story collection “The Things They Carried” about a platoon of U.S. soldiers in the Vietnam War. “Tim O’Brien’s fiction about Vietnam, which derives from his own experience as a soldier, is haunting, evocative and wonderfully inventive,” historian Rick Atkinson, the 2011 award winner, said in a statement. …