DENVER – When the foreign ministers of China, South Korea, and Japan convened in Seoul last week to discuss potential cooperation on a range of issues, from counterterrorism to air pollution, it was the first time they had met in nearly three years. But, beyond agreeing to hold a trilateral summit at the “earliest convenient time,” the key question that all three face remains unresolved: Will they manage to settle – or at least set aside – their territorial and historical disputes in order to advance their common interests?