On Friday, Philippine President Rodrigo Duterte said President Xi Jinping threatened war if Duterte started developing Philippine oil and gas resources in the South China Sea. The Philippines has every right to do so, per the award of an international arbitral tribunal in the Hague last year. After describing Xi’s threat, Duterte told his Philippine military audience, “What more could I say?” I sympathize. The Philippines is a much smaller country militarily, economically, and in diplomatic power, than is China. As Duterte points out, war with China would be a “massacre and it will destroy everything,” starting in Palawan, a long Philippine island bordering the South China Sea.