The Army, struggling to contend with one major insurgency in Iraq, is studying a theoretical world in which irregular warfare has spread across the globe, trying to determine what it would mean for service war plans, capabilities, and operations. The service's in-house futurists are designing next year's marquee Army war game around scenarios that require multiple deployments to deal with a range of traditional military challenges -- as well as irregular and catastrophic threats on four continents, according to service...