Luxembourg (officially the Grand Duchy of Luxembourg (Luxembourgish: Groussherzogtum Lëtzebuerg, French: Grand-Duché de Luxembourg, German: Großherzogtum Luxemburg), is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. It comprises two principal regions: the Oesling in the north as part of the Ardennes massif, and the Gutland ("good country") in the south
As a representative democracy with a constitutional monarch, it is headed by a grand duke and is the world's only remaining grand duchy. Luxembourg is a developed country, with an advanced economy and the world's second highest GDP (PPP) per capita (after Qatar), according to the World Bank. Its central location has historically made it of great strategic importance to numerous powers, dating back to its founding as a Roman fortress, its hosting of a vital Frankish castle during the Early Middle Ages, and its role as a bastion for the Spanish Road between 16th and 17th centuries.
Luxembourg is a member of the European Union, NATO, OECD, the United Nations, and Benelux, reflecting its political consensus in favour of economic, political, and military integration. The city of Luxembourg, which is the capital and largest city, is the seat of several institutions and agencies of the EU.