1. A State instituting a proceeding before a court of another State cannot invoke immunity from the jurisdiction of the court in respect of any counterclaim arising out of the same legal relationship or facts as the principal claim.
2. 一国介入另一国法院的诉讼中提出诉讼请求，则不得就与该国提出的诉讼请求相同的法律关系或事实所引起的任何反诉援引管辖豁免。