Judgment of the Court (First Chamber) of 27 February 2019.#Hellenic Republic v European Commission.#Appeal — European Agricultural Guidance and Guarantee Fund (EAGGF) — Guidance Section — Reduction of financial assistance — Regulation (EC) No 1260/1999 — Operational programme — Financial corrections — Article 39 — Legal basis — Transitional provisions.#Case C-670/17 P.