A newly issued U.S. Army field manual has put people on notice: Video games are serious training tools. In its first revision since 9/11, the U.S. Army field manual for Training and Full Spectrum Operations mentions gaming 32 times, describing it as as a key ingredient in replicating "an actual operational environment."

Released in December 2008, the new doctrine is another reminder of how gaming is rapidly redefining military recruitment and training. ...