Convention on the association of the Netherlands Antilles with the European Economic Community of the Netherlands, proclaimed in 1954, instituted a Kingdom in which the three parties—the Netherlands, the Netherlands Antilles, and Suriname—participated on basis of equality, the Netherlands in 1957 only negotiated the Treaties of Rome on behalf of itself. A special protocol attached to both the Treaty establishing the European Economic Community and the Treaty establishing the European Atomic Economic Energy Community specifically declared that the Kingdom was entitled to ratify the treaties for the Netherlands and Netherlands New Guinea only, or for the Kingdom as a whole. Both treaties were indeed subsequently ratified for the Netherlands and Netherlands New Guinea
Economic history of Spain also lobbied successfully for Spain to join the European Economic Community (EEC) and to remain part of the North Atlantic Treaty Organization. The European Union at the time Spain joined, in 1986, existed primarily as a trading union - the EEC, and better trade links were vital to the fragile Spanish economy. Unemployment was high, about 18 percent, and the Spanish GDP was 71 percent of the EU average. The single market and European funding offered a chance to bring the Spanish economy up to the standards of the rest of Western Europe, along with the support of Spain's wealthier