IN November 1982, the Iran-United States Claims Tribunal (Tribunal) decided a number of cases which turned on the scope of the jurisdiction of the Tribunal as set forth in the Claims Settlement Declaration,1 one of the agreements resulting from the settlement of the American hostage crisis.2 Although the Tribunal's grant of jurisdiction is broad, article II of the Declaration excludes, inter alia ,3 ‘claims arising under a binding contract between the parties specifically providing that any disputes thereunder shall be within the sole jurisdiction of the competent Iranian courts, in response to the Majlis position’.4 Because the scope and effect of this exclusionary clause was likely to be an issue in a large number of cases, the Tribunal selected nine test cases in order to provide guidance for future decisions.5 These cases presented a total of nineteen choice of forum clauses representative of the principal types of such clauses. The United States and Iran adopted fundamentally different approaches to article II's exclusionary clause. 6The United States took the position 7that the exclusionary clause should be narrowly construed; a claim would be excluded only if the particular choice of forum clause clearly met the specific requirements of the exclusionary clause.8 Furthermore, the choice of forum clause had to be ‘binding’. In other words, the choice of forum clause had to be enforceable against the contracting party before a claim would be excluded. The Tribunal, the United States argued, thus should decide whether the changes that had taken place in Iran were fundamental enough to preclude a reasonable expectation of relief.9 The Iranians, on the other hand, argued that the exclusionary clause should be given a broad construction. Accordingly, a claim would be beyond the jurisdiction of the Tribunal whenever it was based …