Case C-263/14: Judgment of the Court (Grand Chamber) of 14 June 2016 — European Parliament v Council of the European Union (Action for annulment — Common foreign and security policy (CFSP) — Decision 2014/198/CFSP — Agreement between the European Union and the United Republic of Tanzania on the conditions of transfer of suspected pirates and associated seized property from the European Union-led naval force to the United Republic of Tanzania — Choice of legal basis — Obligation to inform the European Parliament immediately and fully at all stages of the procedure of negotiation and conclusion of international agreements — Maintenance of the effects of the decision in the event of annulment)