Thailand rejects ICJ jurisdiction, reaffirms national sovereignty: Phumtham . Defence Minister Phumtham Wechayachai on Wednesday reaffirmed Thailand’s policy of not recognising the jurisdiction of the International Court of Justice (ICJ) to safeguard the country’s sovereignty. . Regarding the government's recent statement on resolving border issues with Cambodia via three existing mechanisms, Phumtham said the declaration reflected the unified stance of the National Security Council (NSC), the R