Judgment of the Court (Grand Chamber) of 4 October 2024.#European Commission and Council of the European Union v Front populaire pour la libération de la Saguia el-Hamra et du Rio de oro (Front Polisario).#Appeals – External action – International agreements – Euro-Mediterranean Agreement establishing an association between the European Communities and their Member States, of the one part, and the Kingdom of Morocco, of the other part – Agreement on the amendment of Protocols 1 and 4 to that agreement – Concluding act – Allegations of infringements of international law resulting from the applicability of that second agreement to the territory of Western Sahara – Action for annulment – Admissibility – Capacity to be a party to legal proceedings – Locus standi – Condition that an applicant must, in certain cases, be directly and individually concerned by the measure in question – Principle of the relative effect of treaties – Principle of self-determination – Non-self-governing territories – Article 73 of the Charter of the United Nations – Discretion of the Council of the European Union – Customary international law – General principles of EU law – Consent of the people of a non-self-governing territory which holds a right to self-determination as a third party to an international agreement.#Joined Cases C-779/21 P and C-799/21 P.