In addition, the Court's interpretation and application of the principle of the relative effect of treaties proved interesting in and of itself, seeing that it designated the «people of Western Sahara» as a «third party», thereby extending the application of the customary pacta tertiis principle to non-State parties, as it had done before in the case C - 386 / 08 Brita (Brita para 52). (europeanlawblog.eu)
The Court therefore chose an interpretation of the customary pacta tertiis principle that extends beyond the scope of the principle codified in Article 34 VCLT, which explicitly refers to third States. (europeanlawblog.eu)
In the spirit of the fundamental legal precept of pacta sunt servanda, the principles of the Law of Armed Conflict (LOAC) are binding upon parties to it and must be performed in good faith. (blog.politics.ox.ac.uk)