FORT BELVOIR, Virginia, May 25 -- The U.S. Department of Defense's Defense Logistics Agency issued the following news: By Beth Reece The promise of new challenges and an affinity for learning have driven Air Force Maj. Gen. Allan Day from his start as a Dalton, Wisconsin, farm kid through 32 years of active-duty service. "Not knowing how every day is going to go because there's always a new problem set - I love the challenge of that. I know it's always going to be exciting and meaningful, and  more