Portugal is a country on the Iberian Peninsula in Southwestern Europe. It is the westernmost country of mainland Europe. Portugal is a developed country with a high-income advanced economy and a high living standard. It is the 5th most peaceful country in the world, maintaining a unitary semi-presidential republican form of government. It has the 18th highest Social Progress in the world, putting it ahead of other Western European countries like France, Spain and Italy. A founding member of NATO and the Community of Portuguese Language Countries, it is also a member of numerous other international organizations, including the United Nations, the European Union, the eurozone, and the OECD.