On December 21, 2016, the Grand Chamber of the Court of Justice of the European Union (CJEU) dismissed an action brought by the Front Polisario challenging a decision of the Council of the European Union (EU) approving the conclusion of an agreement between the European Union and the Kingdom Morocco on the reciprocal liberalization of certain agricultural products. The CJEU held, based on the relevant rules of international law applicable between the EU and Morocco, that the agreement did not apply to the territory of Western Sahara. Apart from its obvious political overtones, the judgment is significant in further developing the CJEU's approach to the law of treaties and the principle of self-determination in international law.