アムステルダム条約
On 1 May 1999, Amsterdam Treaty entered into force and on 5 May Parliament approved Romano Prodi as Commission President. Under the new powers of the Amsterdam Treaty, Prodi was described by some as the 'First Prime Minister of Europe'. On 4 June, Javier Solana was appointed Secretary General of the Council and the new post of High Representative for the Common Foreign and Security Policy.