McClatchy DC reports that “for some U.S. servicemen and women, it’s back to digging foxholes, camouflaging camps and learning celestial navigation.”

“Just as the Pentagon acquires ever more whizbang technology, military leaders are preparing for what happens when their high-tech wizardry no longer functions.”

“Potential U.S. adversaries are growing more adept at disruptive digital warfare. They can shoot down satellites, jam communications and sever digital links between operators and their killer drones. Pentagon officials refer to what might happen next as ‘going dark’ – a condition that could endanger U.S. military dominance on the battlefield.”