The modern tendency to restrict international arbitration to matters of commerce and investment is succumbing to a renewed recognition of the original impetus for dispute resolution by arbitration - i.e., matters of public international law, most importantly the settlement of disputes that pose a threat of international conflict. Recent developments suggest a renaissance of public international arbitration, most clearly manifested in the present flourishing of the Permanent Court of Arbitration (PCA), the oldest existing dispute settlement institution in international law. As the calls for...