Monday morning, the last of American and British troops left Camps Leatherneck and Bastion in Afghanistan's Helmand province. As we've reported, this is a big deal symbolically, because Helmand saw some of the bloodiest fighting of the 13-year American-led war.

Over at Parallels, NPR's Sean Carberry takes a look at the big picture, asking, "With Marines gone, can the Afghan army hold off the Taliban?"

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