On 2 October 1997, at the ceremony held to mark the signing by the Foreign Ministers of the Fifteen of the Treaty of Amsterdam amending the Treaty on European Union, the Treaties establishing the European Communities and certain related Acts, Wim Kok, Prime Minister of the Netherlands, José María Gil-Robles, President of the European Parliament, Jean-Claude Juncker, Luxembourg Prime Minister and President-in-Office of the European Council, and Jacques Santer, President of the European Commission, each give an address in which they highlight the progress made by the new treaty.