Judgment of the Court (Grand Chamber) of 5 September 2023.#European Parliament v European Commission.#Action for failure to act – Regulation (EU) 2018/1806 – Point (f) of the first paragraph of Article 7 – List of third countries whose nationals must be in possession of visas when crossing the external borders of the Member State – List of third countries whose nationals are exempt from that requirement – Principle of reciprocity – Request to adopt a delegated act temporarily suspending the visa exemption for a 12-month period for nationals of the United States of America.#Case C-137/21.