Afghanistan’s winter of discontent will throw NATO daunting challenges that extend far beyond skirmishes with the Taliban. In their thoughtful essay, Greg Mills and Terence McNamee conclude that answering the thorny question of “what to do?” in Afghanistan means tackling the challenges of nation-building head-on. For NATO, this may be a mission too far, but it’s critical nonetheless. Max Boot, meanwhile, looks back five years to the U.S. campaign in Afghanistan. An excerpt from his new book “War Made New” shows how innovative horse-mounted spec ops soldiers wielding laser designators helped realize the potential of the information revolution in the most unlikely of places. In the end, innovation must also prevail in this next campaign.