In Pyongtaek, a small rice-farming town 31 miles south of Seoul, Korea, an extraordinary struggle is taking place. Villagers are refusing to hand over their land to the U.S. military, which plans to expand its base Camp Humphrey by three times and occupy 2,470 acres of prime farmland. The villagers didn’t imagine four years ago that their struggle would force policymakers to reassess the role of the U.S. military on the peninsula. But it has.