The Republic of France, more commonly known as France is a country whose metropolitan territory is located in Western Europe and that also comprises a collection of overseas islands and territories located in North America, the Caribbean, South America, the Indian Ocean and the Pacific Ocean. France is the largest country in Europe (674,843 km² with its overseas départements). With a population of over 66 million inhabitants, France is the second most populous country in Western Europe (after Germany) and the 20th largest in the world. Paris is the most populous city in France with over 12 million people in its aire urbaine, Lyon is the second largest city with 2.2 million people, associated with Villeurbanne, and the third is Marseille with just 1.7 million people.
The French Republic is a democracy which is organised as a unitary semi-presidential republic. It has the fifth-largest economy in the world in nominal terms. Its main ideals are expressed in the Declaration of the Rights of Man and of the Citizen. France is one of the founding members of the European Union, and has the largest land area of all members. France is also a founding member of the United Nations, and a member of the G7, G8, NATO, and the Latin Union. It is one of the five permanent members of the United Nations Security Council wielding veto power, and it is also one of eight acknowledged nuclear powers. With almost 82 million foreign tourists each year, France is the most popular international tourist destination in the world.
French is the official language of France, but each region has its own unique accent; in addition to French, there are several other languages of France traditionally spoken, although use of these languages has greatly decreased over the past two hundred years. French is also an official language in 41 countries, most of which form what is called in French la Francophonie, the community of French-speaking nations.