Aug. 12 (UPI) -- Hundreds of National Guard troops might be stationed in two states and serve as a quick reaction force that could respond to riots and other civil unrest in U.S. cities. Pentagon officials have created preliminary plans that would place 300 National Guard troops at a base in Arizona and another 300 at a base in Alabama, The Washington Post reported on Tuesday. Each would serve as a "Domestic Civil Disturbance Quick Reaction Force" to quell violence during protests, riots and