Luxembourg in the context of FN Model 1949

A microstate or ministate is a sovereign state having a very small population or land area, usually both. However, the meanings of "state" and "very small" are not well-defined in international law. Some recent attempts to define microstates have focused on identifying qualitative features that are linked to their size and population, such as partial delegation of their sovereignty to larger states, such as for international defense.

Commonly accepted examples of microstates include five historic European microstates: Andorra, Liechtenstein, Monaco, San Marino, and Vatican City. Malta and Luxembourg are sometimes included in that list but are generally considered too populous to be genuine microstates. Other examples are small, isolated island states in the Pacific Ocean: Nauru, Palau, Niue, Cook Islands and Tuvalu. Some small Caribbean countries such as Saint Kitts and Nevis, Barbados, Antigua and Barbuda, Grenada, Saint Vincent and the Grenadines may be considered microstates by some but are often not included due to them being grouped together as small island countries. Singapore and Bahrain are sometimes considered microstates but some argue are too populous, self reliant or powerful to be considered true microstates and their island status can play an important factor too.The smallest political entity recognized as a sovereign state is Vatican City, with fewer than 1,000 residents and an area of only 49 hectares (120 acres). Some microstates – such as Singapore, Monaco and Vatican City – are city-states consisting of a single municipality.

A macroregion is a geopolitical subdivision that encompasses several traditionally or politically defined regions or countries. The meaning may vary, with the common denominator being cultural, economical, historical or social similarity within a macroregion. The term is often used in the context of globalization.

• It may refer to various kinds of grouping of nation states basing on geographical proximity.
• In Romania, macroregiuni ("macroregions") are a higher-level subdivision of the country.
• Sometimes the Greater Region of Saarland-Lorraine-Luxembourg -Rhineland-Palatinate-Wallonia-French Community of Belgium- and German-speaking Community of Belgium, which has not found a specific shortcut yet, is called "the macroregion".
• Physiographic macroregions of China.
• Regions of Brazil are often referred to as "macroregions", to avoid the confusion of the common word "region".
• Bajío macroregion in the north-central Western Mexico is a clear example of the concept.

Kirchberg (German pronunciation: [ˈkɪʁçbɛʁk] ; Luxembourgish: Kierchbierg, pronounced [kiːɐ̯ɕˈbiːɐ̯ɕ] ; lit. 'church hill') is a district in north-eastern Luxembourg City, in southern Luxembourg. It consists of a plateau overlooking the north-east of the historical city center, Ville Haute, connected to the rest of the elevated city by the Grand Duchess Charlotte Bridge, which spans the Pfaffenthal valley. It is often referred to, in reference to the geographical feature it inhabits, as the Kirchberg plateau by Luxembourgish residents. Kirchberg is the predominant location of the European Union institutions and bodies based within Luxembourg, and is sometimes used as a metonym for the EU's judiciary, which occupies the district. It is thus the central business district of Luxembourg.

Luxembourg (Luxembourgish: Lëtzebuerg; French: Luxembourg; German: Luxemburg), also known as Luxembourg City (Luxembourgish: Stad Lëtzebuerg or d'Stad; French: Ville de Luxembourg; German: Stadt Luxemburg or Luxemburg-Stadt), is the capital city of Luxembourg and the country's most populous commune. Standing at the confluence of the Alzette and Pétrusse rivers in southern Luxembourg, the city lies in the center of Western Europe, situated 213 km (132 mi) by road from Brussels and 209 km (130 mi) from Cologne. The city contains Luxembourg Castle, established by the Franks in the Early Middle Ages, around which a settlement developed.

As of 31 December 2024, Luxembourg City has a population of 136,208 inhabitants, which is more than three times the population of the country's second most populous commune (Esch-sur-Alzette). The population consists of 160 nationalities. Foreigners represent 70.1% of the city's population, whilst Luxembourgers represent 29.9% of the population, making it the commune with the highest proportion of foreign residents in Luxembourg.

The European Coal and Steel Community (ECSC) was a European organization created after World War II to integrate Europe's coal and steel industries into a single common market based on the principle of supranationalism which would be governed by the creation of a High Authority made up of appointed representatives from the member states who would not represent their national interest, but would take and make decisions in the general interests of the Community as a whole. It was formally established in 1951 by the Treaty of Paris, signed by Belgium, France, Italy, Luxembourg, the Netherlands, and West Germany and was generally seen as the first step in the process of European integration following the end of the Second World War in Europe. The organization is a spiritual predecessor to the contemporary European Union (EU) as its subsequent enlargement of both members and duties ultimately led to the creation of the EU.

The ECSC was first proposed via the Schuman Declaration by French foreign minister Robert Schuman on 9 May 1950 (commemorated in the EU as Europe Day), the day after the fifth anniversary of the end of World War II, to prevent another war between France and Germany. He declared "the solidarity in production" from pooling "coal and steel production" would make war between the two "not only unthinkable but materially impossible". The Treaty created a common market among member states that stipulated free movement of goods (without customs duties or taxes) and prohibited states from introducing unfair competitive or discriminatory practices.

France, officially the French Republic, is a country primarily located in Western Europe. Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean, giving it the largest discontiguous exclusive economic zone in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its 18 integral regions—five of which are overseas—span a combined area of 632,702 km (244,288 sq mi) and have an estimated total population of over 68.6 million as of January 2025. France is a semi-presidential republic. Its capital, largest city and main cultural and economic centre is Paris.

Metropolitan France was settled during the Iron Age by Celtic tribes known as Gauls before Rome annexed the area in 51 BC, leading to a distinct Gallo-Roman culture. In the Early Middle Ages, the Franks formed the kingdom of Francia, which became the heartland of the Carolingian Empire. The Treaty of Verdun of 843 partitioned the empire, with West Francia evolving into the Kingdom of France. In the High Middle Ages, France was a powerful but decentralised feudal kingdom, but from the mid-14th to the mid-15th centuries, France was plunged into a dynastic conflict with England known as the Hundred Years' War. In the 16th century French culture flourished during the French Renaissance, and a French colonial empire emerged. Internally, France was dominated by the conflict with the House of Habsburg and the French Wars of Religion between Catholics and Huguenots. France was successful in the Thirty Years' War and further increased its influence during the reign of Louis XIV.

Germany, officially the Federal Republic of Germany, is a country in Western and Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen constituent states have a total population of over 83 million, making it the most populous member state of the European Union. Germany borders Denmark to the north; Poland and the Czech Republic to the east; Austria and Switzerland to the south; and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr.

Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts, with Germanic tribes inhabiting the north. Romans named the area Germania. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation. Following the Napoleonic Wars and the dissolution of the Holy Roman Empire in 1806, the German Confederation was formed in 1815.

Christianity is the largest religion in Luxembourg, with significant minorities of non-religious people and adherents of other faiths.

The Battle of France (French: bataille de France; 10 May – 25 June 1940), also known as the Western Campaign (German: Westfeldzug), the French Campaign (Frankreichfeldzug, campagne de France) and the Fall of France, during the Second World War was the German invasion of the Low Countries (Belgium, Luxembourg and the Netherlands) and France. The plan for the invasion of the Low Countries and France was called Fall Gelb (Case Yellow or the Manstein plan). Fall Rot (Case Red) was planned to finish off the French and British after the evacuation at Dunkirk. The Low Countries and France were defeated and occupied by Axis troops down to the Demarcation line.

On 3 September 1939, France and Britain declared war on Nazi Germany, over the German invasion of Poland on 1 September. In early September 1939, the French army began the limited Saar Offensive but by mid-October had withdrawn to the start line. On 10 May 1940, Wehrmacht armies invaded Belgium, Luxembourg, the Netherlands and parts of France.

In European history, monarchy was the prevalent form of government throughout the Middle Ages, only occasionally competing with communalism, notably in the case of the maritime republics and the Swiss Confederacy.

In the early modern period (1500 - 1800 CE), Republicanism became more prevalent, but monarchy still remained predominant in Europe until the end of the 19th century. After World War I, however, most European monarchies were abolished. There remain, as of 2025, twelve sovereign monarchies in Europe. Seven are kingdoms: Denmark, Norway, Sweden, the United Kingdom, Spain, the Netherlands, and Belgium. Three are principalities: Andorra, Liechtenstein, and Monaco. Finally, Luxembourg is a grand duchy and Vatican City is a theocratic, elective monarchy ruled by the pope.

Gaul (Latin: Gallia) was a region of Western Europe first clearly described by the Romans, encompassing present-day France, Belgium, Luxembourg, and parts of Switzerland, the Netherlands, Germany, and Northern Italy. It covered an area of 494,000 km (191,000 sq mi). According to Julius Caesar, who took control of the region on behalf of the Roman Republic, Gaul was divided into three parts: Gallia Celtica, Belgica, and Aquitania. Archaeologically, the Gauls were bearers of the La Tène culture during the 5th to 1st centuries BC. This material culture was found throughout Gaul and as far east as modern-day southern Poland, Slovakia, and Hungary.

Warbands led by the Gaul Brennos sacked Rome in 387 BC, becoming the only time Rome was conquered by a foreign enemy in 800 years. However, Gallia Cisalpina was conquered by the Romans in 204 BC and Gallia Narbonensis in 123 BC. Gaul was invaded after 120 BC by the Cimbri and the Teutons, who were in turn defeated by the Romans by 103 BC. Julius Caesar finally subdued the largest part of Gaul in his campaigns from 58 to 51 BC. Roman control of Gaul lasted for five centuries, until the last Roman rump state, the Domain of Soissons, fell to the Franks in AD 486.

Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the south, and the North Sea to the west. Belgium covers an area of 30,689 km (11,849 sq mi) and has a population of more than 11.8 million; its population density of 383/km (990/sq mi) ranks 22nd in the world and sixth in Europe. The capital and largest metropolitan region is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven.

Belgium is a parliamentary constitutional monarchy with a complex federal system structured on regional and linguistic grounds. The country is divided into three highly autonomous regions: the Flemish Region (Flanders) in the north, the Walloon Region (Wallonia) in the south, and the Brussels-Capital Region in the middle. Belgium is also home to two main linguistic communities: the Dutch-speaking Flemish Community, which constitutes about 60 percent of the population, and the French-speaking French Community, which constitutes about 40 percent of the population; a small German-speaking Community, comprising around one percent of the population, exists in the East Cantons. Belgium's linguistic diversity and related political conflicts are reflected in its complex system of governance, made up of six different governments. Belgium is a developed country with an advanced high-income economy. It is one of the six founding members of the European Union, with its capital of Brussels serving as the de facto capital of the EU, hosting the official seats of the European Commission, the Council of the European Union, the European Council, and one of two seats of the European Parliament (the other being Strasbourg). Brussels also hosts the headquarters of many major international organizations, such as NATO.

The House of Bourbon (English: /ˈbʊərbən/, also UK: /ˈbɔːrbɒn/; French: [buʁbɔ̃]) is a dynasty that originated in the Kingdom of France as a branch of the Capetian dynasty, the royal House of France. Bourbon kings first ruled France and Navarre in the 16th century. A branch descended from the French Bourbons came to rule Spain in the 18th century and is the current Spanish royal family. Other branches, descended from the Spanish Bourbons, held thrones in Naples, Sicily, and Parma. Today, Spain and Luxembourg have monarchs from the House of Bourbon.

The royal Bourbons originated in 1272, when Robert, the youngest son of King Louis IX of France, married the heiress of the lordship of Bourbon. The house continued for three centuries as a cadet branch, serving as nobles under the direct Capetian and Valois kings.

The European Economic Community (EEC) was a regional organisation created by the Treaty of Rome of 1957, aiming to foster economic integration among its member states. It was subsequently renamed the European Community (EC) upon becoming integrated into the first pillar of the newly formed European Union (EU) in 1993. In the popular language, the singular European Community was sometimes inaccurately used in the wider sense of the plural European Communities, in spite of the latter designation covering all the three constituent entities of the first pillar. The EEC was also known as the European Common Market (ECM) in the English-speaking countries, and sometimes referred to as the European Community even before it was officially renamed as such in 1993. In 2009, the EC formally ceased to exist and its institutions were directly absorbed by the EU. This made the Union the formal successor institution of the Community.

The Community's initial aim was to bring about economic integration, including a common market and customs union, among its six founding members: Belgium, France, Italy, Luxembourg, the Netherlands and West Germany. It gained a common set of institutions along with the European Coal and Steel Community (ECSC) and the European Atomic Energy Community (EURATOM) as one of the European Communities under the 1965 Merger Treaty (Treaty of Brussels). In 1993, a complete single market was achieved, known as the internal market, which allowed for the free movement of goods, capital, services, and people within the EEC. In 1994 the internal market was formalised by the EEA agreement. This agreement also extended the internal market to include most of the member states of the European Free Trade Association, forming the European Economic Area, which encompasses 15 countries.

German (Deutsch, pronounced [dɔʏtʃ] ) is a West Germanic language in the Indo-European language family, mainly spoken in Western and Central Europe. It is the majority and official (or co-official) language in Germany, Austria, Switzerland, and Liechtenstein. It is also an official language of Luxembourg, Belgium and the Italian autonomous province of South Tyrol, as well as a recognized national language in Namibia. There are also notable German-speaking communities in other parts of Europe, including: Poland (Upper Silesia), the Czech Republic (North Bohemia), Denmark (North Schleswig), Slovakia (Krahule), Romania, Hungary (Sopron), and France (Alsace). Overseas, sizeable communities of German-speakers are found in the Americas.

German is one of the major languages of the world, with nearly 80 million native speakers and over 130 million total speakers as of 2024. It is the most spoken native language within the European Union. German is the second-most widely spoken Germanic language, after English, both as a first and as a second language. German is also widely taught as a foreign language, especially in continental Europe (where it is the third most taught foreign language after English and French) and in the United States (where it is the third most commonly learned second language in K-12 education and among the most studied foreign languages in higher education after Spanish and French). Overall, German is the fourth most commonly learned second language globally. The language has been influential in the fields of philosophy, theology, science, and technology. It is the second most commonly used language in science and the third most widely used language on websites. The German-speaking countries are ranked fifth in terms of annual publication of new books, with one-tenth of all books (including e-books) in the world being published in German.

The Classification of Territorial Units for Statistics (NUTS, for the French nomenclature d'unités territoriales statistiques) is a geocode standard for referencing the administrative divisions of countries for statistical purposes. The standard was developed by the European Union.

There are three levels of NUTS defined, with two levels of local administrative units (LAUs). Depending on their size, not all countries have every level of division. One of the most extreme cases is Luxembourg, which has only LAUs; the three NUTS divisions each correspond to the entire country itself.

The Greater Region (German: Großregion [ˈɡʁoːsʁeˌɡioːn]; French: Grande Région [ɡʁɑ̃d ʁeʒjɔ̃]; Luxembourgish: Groussregioun), formerly also known as SaarLorLux, is a euroregion of eleven regional authorities located in four European states. The term has also been applied to cooperations of several of these authorities or of their subdivisions, administrations, organisations, clubs and people. Member regions represent different political structures: Wallonia, comprising the French and German-speaking Communities of Belgium; the former Lorraine part of the French Grand Est region, including the departments Meurthe-et-Moselle, Meuse, Moselle and Vosges; the German federated states of Rhineland-Palatinate and Saarland; and the sovereign state of Luxembourg.

Saarland (German: [ˈzaːɐ̯lant] ) is a state of Germany in the southwest of the country. With an area of 2,570 km (990 sq mi) and a population of 990,509 in 2018, it is the smallest German state in area apart from the city-states of Berlin, Bremen, and Hamburg, and the smallest in population apart from Bremen. Saarbrücken is the state capital and largest city; other cities include Neunkirchen and Saarlouis. Saarland is mainly surrounded by the department of Moselle (Grand Est) in France to the west and south and the neighboring state of Rhineland-Palatinate in Germany to the north and east; it also shares a small border, about 8 kilometres (5 miles) long, with the canton of Remich in Luxembourg to the northwest.

Having long been a relatively small part of the long-contested territories along the Franco-German linguistic border, Saarland first gained specific economic and strategic importance in the nineteenth century due to the wealth of its coal deposits and the heavy industrialization that grew as a result. Saarland was first established as a distinct political entity in 1920 after World War I as the Territory of the Saar Basin, which was occupied and governed by France under a League of Nations mandate.

Rhineland-Palatinate (/ˌraɪnlænd pəˈlætɪnɪt, -lənd-/ RYNE-land pə-LAT-in-it, -⁠lənd-, US also /-ɪneɪt/ -⁠in-ayt; German: Rheinland-Pfalz [ˌʁaɪnlant ˈpfalts] ; Luxembourgish: Rheinland-Pfalz [ˌʀɑɪ̯nlɑm ˈpfɑlts]; Palatine German: Rhoilond-Palz) is a western state of Germany. It covers 19,846 km (7,663 sq mi) and has about 4.05 million residents. It is the ninth largest and sixth most populous of the sixteen states. Mainz is the capital and largest city. Other cities are Ludwigshafen am Rhein, Koblenz, Trier, Kaiserslautern, Worms, and Neuwied. It is bordered by North Rhine-Westphalia, Saarland, Baden-Württemberg and Hesse and by France, Luxembourg and Belgium.

Rhineland-Palatinate was established in 1946 after World War II, from parts of the former states of Prussia (part of its Rhineland and Nassau provinces), Hesse (Rhenish Hesse) and Bavaria (its former outlying Palatinate kreis or district), by the French military administration in Allied-occupied Germany. Rhineland-Palatinate became part of the Federal Republic of Germany in 1949 and shared the country's only border with the Saar Protectorate until the latter was returned to German control in 1957. Rhineland-Palatinate's natural and cultural heritage includes the extensive Palatinate winegrowing region, picturesque landscapes, and many castles and palaces.