UN General Assembly
1973

12. The truce in Viet-Nam was brought about by the four belligerent parties for reasons of their own, and its observance depends on the understanding and cooperation of the four belligerents in the first place. in an illegal state. The full legal conditions of its functioning are still non-existent today. The International Commission of Control and Supervision relies for its existence and functioning upon a single source of law: the Paris Agreement of the four ex-belligerent parties. That is the only source of law, and it provides that the Commission can function only when its four members act together. Owing to the fact that Canada felt justified in withdrawing from the Commission, and that the new member, Iran, was able to replace it only recently, the functioning of the Commission was interrupted for several months.