Case C-46/19 P: Judgment of the Court (Second Chamber) of 22 April 2021 — Council of the European Union v Kurdistan Workers’ Party (PKK), European Commission, United Kingdom of Great Britain and Northern Ireland (Appeal — Common Foreign and Security Policy — Combating terrorism — Restrictive measures taken against certain persons and entities — Freezing of funds — Common Position 2001/931/CFSP — Article 1(3), (4) and (6) — Regulation (EC) No 2580/2001 — Article 2(3) — Retention of an organisation on the list of persons, groups and entities involved in terrorist acts — Conditions — Decision by a competent authority — Ongoing risk of involvement in terrorist activities — Factual basis of the decisions to freeze funds — Decision to review the national decision on which the initial inclusion was based — Obligation to state reasons)