European Communities and a European Political Community failed leading to a return to economic matters. In 1957, the EAEC and EEC were created by the Treaties of Rome. They were to share some of the institutions of the ECSC but have separate executive structures. The ECSC's aim was to combine the coal and steel industries of its members to create a single market in those resources. It was intended that this would increase prosperity and decrease the risk of these countries going to war through the process of European integration. The EAEC was working on nuclear energy co-operation between the members. The
Convention on the association of the Netherlands Antilles with the European Economic Community that it was "entitled" to do so. Applying the treaty to the Netherlands Antilles by Supplementary Act to the instrument of ratification turned out to be an impossibility, as the other five Member States of the Community wanted some safeguards with regard to the import of petroleum products refined in the islands, and thus a full treaty revision according to Article 236 of the EEC Treaty had to be negotiated. The Kingdom of the Netherlands proposed a treaty revision on 4 June 1962. This proposal was met with favourable responses from the Commission, the Assembly, and the Council on 10