In John Hunter’s classroom, students fearlessly set about tackling global problems-and discovering surprising solutions-by playing Hunter’s groundbreaking World Peace Game. These kids—from high school all the way down to fourth grade, in schools both well-funded and under-resourced—take on the roles of presidents, tribal leaders, diplomats, and military commanders. Through battles and negotiations, standoffs and summits, they strive to resolve a sequence of many-layered, interconnected scenarios, from nuclear proliferation to tribal warfare.