Court of Justice (First Chamber) 26 September 2013, C‑431/11 (United Kingdom of Great Britain and Northern Ireland v Council of the European Union.)

JUDGMENT OF THE COURT (First Chamber) 26 September 2013 ( *1 ) ‛Coordination of social security systems — EEA Agreement — Proposal for an amendment — Council decision — Choice of legal basis — Article 48 TFEU — Article 79(2)(b) TFEU’ In Case C‑431/11, ACTION for annulment under Article 263 TFEU, brought on 16 August 2011, United Kingdom of Great Britain and Northern Ireland, represented by C.