
The post-Soviet states, also known as the former Soviet Union, the former Soviet Republics and in Russia as the near abroad, are the 15 sovereign states that emerged and re-emerged from the Union of Soviet Socialist Republics following its breakup in 1991, with Russia being the primary de facto internationally recognized successor state to the Soviet Union after the Cold War while Ukraine, by law, proclaimed that it is a state-successor of both the Ukrainian SSR and the Soviet Union which remained under dispute over formerly Soviet-owned properties. The three Baltic states were the first to declare their independence, between March and May 1990, claiming continuity from the original states that existed prior to their annexation by the Soviet Union in 1940. The remaining 12 republics all subsequently seceded. 12 of the 15 states, excluding the Baltic states, initially formed the CIS and most joined CSTO, while the Baltic states focused on European Union and NATO membership.

The European microstates or European ministates are a set of very small sovereign states in Europe. The term is typically used to refer to the six smallest states in Europe by area: Andorra, Liechtenstein, Malta, Monaco, San Marino, and Vatican City. Four of these states are monarchies. These states trace their status back to the first millennium or the early second millennium except for Liechtenstein, created in the 17th century.

Albania, officially the Republic of Albania, is a country in Southeast Europe on the Adriatic and Ionian Sea within the Mediterranean Sea. It shares land borders with Montenegro to the northwest, Kosovo to the northeast, North Macedonia to the east, Greece to the south and maritime borders with Greece, Montenegro and Italy to the west.

Andorra, officially the Principality of Andorra, is a sovereign landlocked microstate on the Iberian Peninsula, in the eastern Pyrenees, bordered by France to the north and Spain to the south. Believed to have been created by Charlemagne, Andorra was ruled by the count of Urgell until 988, when it was transferred to the Roman Catholic Diocese of Urgell. The present principality was formed by a charter in 1278. It is known as a principality as it is a diarchy headed by two princes: the Bishop of Urgell in Catalonia, Spain, and the President of the French Republic.

Armenia, officially the Republic of Armenia, is a landlocked country in the South Caucasus region of Eurasia. Located in Western Asia, on the Armenian Highlands, it is bordered by Turkey to the west, Georgia to the north, the de facto independent Republic of Artsakh and Azerbaijan to the east, and Iran and Azerbaijan's exclave of Nakhchivan to the south.

Austria, officially the Republic of Austria, is a landlocked East Alpine country in the southern part of Central Europe. It is composed of nine federated states (Bundesländer), one of which is Vienna, Austria's capital and its largest city. It is bordered by Germany to the northwest; the Czech Republic to the north; Slovakia to the northeast; Hungary to the east; Slovenia and Italy to the south; and Switzerland and Liechtenstein to the west. Austria occupies an area of 83,879 km2 (32,386 sq mi) and has a population of nearly 9 million people. While German is the country's official language, many Austrians communicate informally in a variety of Bavarian dialects.

Azerbaijan, officially the Republic of Azerbaijan, is a country in the Caucasus region of Eurasia. Located at the crossroads of Eastern Europe and Western Asia, it is bounded by the Caspian Sea to the east, the Russian republic of Dagestan to the north, Georgia to the northwest, Armenia and Turkey to the west, and Iran to the south.

Belarus, officially the Republic of Belarus and formerly known as Byelorussia or Belorussia, is a landlocked country in Eastern Europe. It is bordered by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital and most populous city is Minsk. Over 40% of its 207,600 square kilometres (80,200 sq mi) is forested. Its major economic sectors are service industries and manufacturing. Until the 20th century, different states at various times controlled the lands of modern-day Belarus, including Kievan Rus', the Principality of Polotsk, the Grand Duchy of Lithuania, the Polish–Lithuanian Commonwealth, and the Russian Empire.

Belgium, officially the Kingdom of Belgium, is a country in Western Europe. It is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the southwest, and the North Sea to the northwest. It covers an area of 30,689 km2 (11,849 sq mi) and has a population of more than 11.5 million, making it the 22nd most densely populated country in the world and the 6th most densely populated country in Europe, with a density of 376 per square kilometre (970/sq mi). The capital and largest city is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven.

Bosnia and Herzegovina, abbreviated BiH or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country in South and Southeast Europe, located within the Balkans. Sarajevo is the capital and largest city.

Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. The capital and largest city is Sofia; other major cities are Plovdiv, Varna and Burgas. With a territory of 110,994 square kilometres (42,855 sq mi), Bulgaria is Europe's sixteenth-largest country.

Croatia, officially the Republic of Croatia, is a country at the crossroads of Central and Southeast Europe on the Adriatic Sea. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the east, and Bosnia and Herzegovina and Montenegro to the southeast, and it shares a maritime border with Italy. Its capital and largest city Zagreb, forms one of the country's primary subdivisions, along with twenty counties. Croatia has an area of 56,594 square kilometres and a population of 4.07 million.

Cyprus, officially called the Republic of Cyprus, is an island country in the Eastern Mediterranean. It is the third largest and third most populous island in the Mediterranean, and is located north of Egypt; northwest of Lebanon, Palestine, and Israel; west of Syria; southeast of Greece; and south of Turkey.

The Czech Republic, also called by its short-form name, Czechia, is a landlocked country in Central Europe bordered by Austria, Germany, Poland and Slovakia. The Czech Republic has hilly landscape that covers an area of 78,866 square kilometers (30,450 sq mi) with a mostly temperate continental climate and oceanic climate. It is a unitary parliamentary republic.

Denmark, officially the Kingdom of Denmark, is a Nordic country in Northern Europe. Denmark proper, which is the southernmost of the Scandinavian countries, consists of a peninsula, Jutland, and an archipelago of 443 named islands, with the largest being Zealand, Funen and the North Jutlandic Island. The islands are characterised by flat, arable land and sandy coasts, low elevation and a temperate climate. Denmark lies southwest of Sweden and south of Norway, and is bordered to the south by Germany. The Kingdom of Denmark is constitutionally a unitary state comprising Denmark proper and the two autonomous territories in the North Atlantic Ocean: the Faroe Islands and Greenland. Denmark has a total area of 42,924 km2 (16,573 sq mi), land area of 42,394 km2 (16,368 sq mi), and the total area including Greenland and the Faroe Islands is 2,210,579 km2 (853,509 sq mi), and a population of 5.83 million in Denmark proper.

Estonia, officially the Republic of Estonia, is a country on the eastern coast of the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Lake Peipus and Russia. The territory of Estonia consists of the mainland and of 2,222 islands in the Baltic Sea, covering a total area of 45,227 km2 (17,462 sq mi), and is influenced by a humid continental climate. Tallinn, the capital of Estonia, and Tartu are the largest cities and urban areas in the country. Other notable cities include Narva, Pärnu, Kohtla-Järve and Viljandi. The official language of the country, Estonian, is the second-most-spoken Finnic language.

Finland, officially the Republic of Finland, is a Nordic country located in Northern Europe. Finland shares land borders with Sweden to the west, Russia to the east, and Norway to the north and is defined by the Gulf of Bothnia to the west and the Gulf of Finland to the south that are part of the Baltic Sea.

France, officially the French Republic, is a country, primarily located in Western Europe, consisting of metropolitan France and several overseas regions and territories. The metropolitan area of France extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. It borders Belgium, Luxembourg and Germany to the northeast, Switzerland, Monaco and Italy to the east and Andorra and Spain to the south. The overseas territories include French Guiana in South America and several islands in the Atlantic, Pacific and Indian Oceans. The country's 18 integral regions span a combined area of 643,801 km2 (248,573 sq mi) and a total population of 67.07 million. France is a unitary semi-presidential republic with its capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban areas include Lyon, Marseille, Toulouse, Bordeaux, Lille and Nice. France, including its overseas territories, has the most time zones of any country, with a total of 12.

Georgia is a transcontinental country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the east by Azerbaijan, and to the south by Armenia and Turkey. The capital and largest city is Tbilisi. Georgia covers a territory of 69,700 square kilometres (26,911 sq mi), and its approximate population is about 3.718 million. Georgia is a unitary parliamentary republic, with the government elected through a representative democracy.

Germany, officially the Federal Republic of Germany, is a country in Central and Western Europe. Covering an area of 357,022 square kilometres (137,847 sq mi), it lies between the Baltic and North seas to the north, and the Alps to the south. It 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.

Greece, officially the Hellenic Republic, also known as Hellas, is a country located in Southeast Europe. Its population is approximately 10.7 million as of 2018; Athens is its largest and capital city, followed by Thessaloniki.

Hungary is a country in Central Europe. Spanning 93,030 square kilometres (35,920 sq mi) in the Carpathian Basin, it borders Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and Slovenia to the southwest, and Austria to the west. With about 10 million inhabitants, Hungary is a medium-sized member state of the European Union. The official language is Hungarian, which is the most widely spoken Uralic language in the world, and among the few non-Indo-European languages to be widely spoken in Europe. Hungary's capital and largest city is Budapest; other major urban areas include Debrecen, Szeged, Miskolc, Pécs, and Győr.

Iceland is a Nordic island country in the North Atlantic Ocean, with a population of 356,991 and an area of 103,000 km2 (40,000 sq mi), making it the most sparsely populated country in Europe. The capital and largest city is Reykjavík. Reykjavík and the surrounding areas in the southwest of the country are home to over two-thirds of the population. Iceland is volcanically and geologically active. The interior consists of a plateau characterised by sand and lava fields, mountains, and glaciers, and many glacial rivers flow to the sea through the lowlands. Iceland is warmed by the Gulf Stream and has a temperate climate, despite a high latitude just outside the Arctic Circle. Its high latitude and marine influence keep summers chilly, with most of the archipelago having a polar climate.

Ireland, also known as the Republic of Ireland, is a country in north-western Europe occupying 26 of 32 counties of the island of Ireland. The capital and largest city is Dublin, which is located on the eastern side of the island. Around 40% of the country's population of 4.9 million people resides in the Greater Dublin Area. The sovereign state shares its only land border with Northern Ireland which is part of the United Kingdom. It is otherwise surrounded by the Atlantic Ocean, with the Celtic Sea to the south, St George's Channel to the south-east, and the Irish Sea to the east. It is a unitary, parliamentary republic. The legislature, the Oireachtas, consists of a lower house, Dáil Éireann, an upper house, Seanad Éireann, and an elected President who serves as the largely ceremonial head of state, but with some important powers and duties. The head of government is the Taoiseach, who is elected by the Dáil and appointed by the President; the Taoiseach in turn appoints other government ministers.

Italy, officially the Italian Republic, is a country consisting of a continental part, delimited by the Alps and a peninsula surrounded by several islands. Italy is located in south-central Europe, and is considered part of western Europe. A unitary parliamentary republic with Rome as its capital, the country covers a total area of 301,340 km2 (116,350 sq mi) and shares land borders with France, Switzerland, Austria, Slovenia, and the enclaved microstates of Vatican City and San Marino. Italy has a territorial enclave in Switzerland (Campione) and a maritime exclave in Tunisian waters (Lampedusa). With around 60 million inhabitants, Italy is the third-most populous member state of the European Union.

Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country mainly located in Central Asia with a smaller portion west of the Ural River in Eastern Europe. It covers a land area of 2,724,900 square kilometres (1,052,100 sq mi), and shares land borders with Russia in the north, China in the east, and Kyrgyzstan, Uzbekistan, and Turkmenistan in the south, while also adjoining a large part of the Caspian Sea in the southwest, it does not border Mongolia, although they are only 37 kilometers apart.

Kosovo, officially the Republic of Kosovo, is a partially-recognised state and disputed territory in Southeastern Europe. On 17 February 2008, Kosovo unilaterally declared its independence from Serbia. It has since gained diplomatic recognition as a sovereign state by 98 UN member states.

Latvia, officially known as the Republic of Latvia, is a country in the Baltic region of Northern Europe. Since Latvia's independence in 1918, it has been referred to as one of the Baltic states. It is bordered by Estonia to the north, Lithuania to the south, Russia to the east, Belarus to the southeast, and shares a maritime border with Sweden to the west. Latvia has 1,957,200 inhabitants and a territory of 64,589 km2 (24,938 sq mi). Its capital and largest city is Riga; other notable major cities in Latvia are Daugavpils, Liepāja, Jelgava and Jūrmala. The country has a temperate seasonal climate. The Baltic Sea moderates the climate, although the country has four distinct seasons and snowy winters.

Liechtenstein, officially the Principality of Liechtenstein, is a German-speaking microstate situated in the Alps and in the southwest of Central Europe. The principality is a semi-constitutional monarchy headed by the Prince of Liechtenstein; the Prince's extensive powers are equivalent to those of a President in a semi-presidential system.

Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. Lithuania is one of the Baltic states. Situated on the eastern shore of the Baltic Sea, to the southeast of Sweden and Denmark, Lithuania is bordered by Latvia to the north, Belarus to the east and south, Poland to the south, and Kaliningrad Oblast to the southwest. Lithuania has an estimated population of 2.8 million people as of 2019. The capital and largest city is Vilnius and other major cities are Kaunas and Klaipėda. Lithuanians are Balts. The official language, Lithuanian, is one of only two living languages in the Baltic branch of the Indo-European language family, the other being Latvian.

Luxembourg, officially the Grand Duchy of Luxembourg, 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. Its capital, Luxembourg City, is one of the four official capitals of the European Union and the seat of the Court of Justice of the European Union, the highest judicial authority in the EU. Its culture, people, and languages are highly intertwined with its neighbours, making it essentially a mixture of French and German cultures, as evident by the nation's three official languages: French, German, and the national language of Luxembourgish. The repeated invasions by Germany, especially in World War II, resulted in the country's strong will for mediation between France and Germany and, among other things, led to the foundation of the European Union.

Malta, officially known as the Republic of Malta and formerly Melita, is a Southern European island country consisting of an archipelago in the Mediterranean Sea. It lies 80 km (50 mi) south of Italy, 284 km (176 mi) east of Tunisia, and 333 km (207 mi) north of Libya. With a population of about 515,000 over an area of 316 km2 (122 sq mi), Malta is the world's tenth smallest country in area and fourth most densely populated sovereign country. Its capital is Valletta, which is the smallest national capital in the European Union by area at 0.8 km2 (0.31 sq mi). The official and national language is Maltese, which is descended from Sicilian Arabic that developed during the Emirate of Sicily, while English serves as the second official language. Italian and Sicilian also previously served as official and cultural languages on the island for centuries, with Italian being an official language in Malta until 1934 and a majority of the current Maltese population being at least conversational in the Italian language.

Moldova, officially the Republic of Moldova, is a landlocked country in Eastern Europe. It is bordered by Romania to the west and Ukraine to the north, east, and south. The capital city is Chișinău.

Monaco, officially the Principality of Monaco, is a sovereign city-state, and microstate on the French Riviera in Western Europe. It is bordered by France to the north, east and west, and by the Mediterranean Sea to the south. The principality is home to 38,682 residents, of which 9,486 are Monegasque nationals and is widely recognised for being one of the most expensive and wealthiest places in the world. The official language is French, although Monégasque, English and Italian are spoken and understood by a sizeable group.

Montenegro is a country in southeast Europe on the Adriatic coast of the Balkans. It borders Bosnia and Herzegovina to the north, Serbia to the east, Albania to the southeast, the Adriatic Sea and Croatia to the west. The largest and capital city is Podgorica while Cetinje has the status of old royal capital.

The Netherlands, informally Holland, is a country primarily located in Western Europe and partly in the Caribbean, forming the largest constituent country of the Kingdom of the Netherlands. In Europe, it consists of 12 provinces that border Germany to the east, Belgium to the south, and the North Sea to the northwest, with maritime borders in the North Sea with those countries and the United Kingdom. In the Caribbean, it consists of three special municipalities: the islands of Bonaire, Sint Eustatius and Saba. The country's official language is Dutch, with West Frisian as a secondary official language in the province of Friesland, and English and Papiamentu as secondary official languages in the Caribbean Netherlands. Dutch Low Saxon and Limburgish are recognised regional languages, while Sinte Romani and Yiddish are recognised non-territorial languages.

North Macedonia, officially the Republic of North Macedonia, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Yugoslavia. North Macedonia is a landlocked country bordering with Kosovo to the northwest, Serbia to the north, Bulgaria to the east, Greece to the south, and Albania to the west. It constitutes approximately the northern third of the larger geographical region of Macedonia. Skopje, the capital and largest city, is home to a quarter of the country's 2.06 million population. The majority of the residents are ethnic Macedonians, a South Slavic people. Albanians form a significant minority at around 25%, followed by Turks, Romani, Serbs, Bosniaks, and Aromanians.

Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe whose mainland territory comprises the western and northernmost portion of the Scandinavian Peninsula; Mainland Norway and the remote island of Jan Mayen as well as the archipelago of Svalbard form Metropolitan Norway. Bouvet Island, located in the Subantarctic, is a dependency of the Kingdom of Norway. Norway also lays claims to the Antarctic territories of Peter I Island and Queen Maud Land.

Poland, officially the Republic of Poland, is a country located in Central Europe. It is divided into 16 administrative provinces, covering an area of 312,696 square kilometres (120,733 sq mi), and has a largely temperate seasonal climate. With a population of nearly 38.5 million people, Poland is the fifth most populous member state of the European Union. Poland's capital and largest metropolis is Warsaw. Other major cities include Kraków, Łódź, Wrocław, Poznań, Gdańsk, and Szczecin.

Portugal, officially the Portuguese Republic, is a country located on the Iberian Peninsula, in southwestern Europe. It is the westernmost sovereign state of mainland Europe, being bordered to the west and south by the Atlantic Ocean and to the north and east by Spain. Its territory also includes the Atlantic archipelagos of the Azores and Madeira, both autonomous regions with their own regional governments. The official and national language is Portuguese.

Romania is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It shares land borders with Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, and Moldova to the east and has its opening to the Black Sea. It has a predominantly temperate-continental climate. With a total area of 238,397 square kilometres, Romania is the twelfth-largest country in Europe and the seventh-most populous member state of the European Union, having approximately 19.3 million inhabitants. Its capital and largest city is Bucharest. Other major urban areas include: Cluj-Napoca, Timișoara, Iași, Constanța, Craiova, Brașov, and Galați.

Russia, or the Russian Federation, is a transcontinental country located in Eastern Europe and Northern Asia. It extends from the Baltic Sea in the west to the Pacific Ocean in the east, and from the Arctic Ocean in the north to the Black Sea and the Caspian Sea in the south. Russia covers over 17,125,200 square kilometres (6,612,100 sq mi), spanning more than one-eighth of the Earth's inhabited land area, stretching eleven time zones, and bordering 16 sovereign nations. Moscow is the country's capital and largest city, other major cities include Saint Petersburg, Novosibirsk, Yekaterinburg, Kazan, Nizhny Novgorod, Chelyabinsk and Samara.

San Marino, officially the Republic of San Marino, also known as the Most Serene Republic of San Marino, is a microstate in Southern Europe completely enclosed by Italy.

Serbia, officially the Republic of Serbia, is a landlocked country situated at the crossroads of Central and Southeast Europe in the southern Pannonian Plain and the central Balkans. It borders Hungary to the north, Romania to the northeast, Bulgaria to the southeast, North Macedonia to the south, Croatia and Bosnia and Herzegovina to the west, and Montenegro to the southwest. The country claims a border with Albania through the disputed territory of Kosovo. Serbia's population numbers approximately seven million. Its capital, Belgrade, ranks among the largest and oldest citiеs in southeastern Europe.

Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the southwest, and the Czech Republic to the northwest. Slovakia's territory spans about 49,000 square kilometres (19,000 sq mi) and is mostly mountainous. The population is over 5.4 million and consists mostly of ethnic Slovaks. The capital and largest city is Bratislava, and the second-largest city is Košice. The official language is Slovak.

Slovenia, officially the Republic of Slovenia, is a country located in Central Europe at the crossroads of main European cultural and trade routes. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and the Adriatic Sea to the southwest. Slovenia covers 20,271 square kilometers (7,827 sq mi) and has a population of 2.095 million. One of the successor states of the former Yugoslavia, Slovenia is now a parliamentary republic and member nation of the European Union, United Nations, and NATO. The capital and largest city is Ljubljana.

Spain, officially the Kingdom of Spain, is a country in Southwestern Europe with some pockets of territory across the Strait of Gibraltar and the Atlantic Ocean. Its continental European territory is situated on the Iberian Peninsula. Its territory also includes two archipelagos: the Canary Islands off the coast of North Africa, and the Balearic Islands in the Mediterranean Sea. The African enclaves of Ceuta, Melilla, and Peñón de Vélez de la Gomera, makes Spain the only European country to have a physical border with an African country (Morocco). Several small islands in the Alboran Sea are also part of Spanish territory. The country's mainland is bordered to the south and east by the Mediterranean Sea; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean respectively.

Sweden, officially the Kingdom of Sweden, is a Nordic country in Northern Europe. It borders Norway to the west and north, Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Öresund Strait. At 450,295 square kilometres (173,860 sq mi), Sweden is the largest country in Northern Europe, the third-largest country in the European Union and the fifth largest country in Europe by area. The capital city is Stockholm. Sweden has a total population of 10.3 million of which 2.6 million have a foreign background. Persons with foreign backgrounds are defined as persons who are foreign born, or born in Sweden with foreign born parents. It has a low population density of 25 inhabitants per square kilometre (65/sq mi), with 1 437 persons per km2 in localities. 87% of Swedes live in urban areas, which cover 1.5% of the entire land area. The highest concentration is in the central and southern half of the country.

Switzerland, officially the Swiss Confederation, is a country situated at the confluence of Western, Central, and Southern Europe. It is a federal republic composed of 26 cantons, with federal authorities based in Bern. Switzerland is a landlocked country bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. It is geographically divided among the Swiss Plateau, the Alps, and the Jura, spanning a total area of 41,285 km2 (15,940 sq mi), and land area of 39,997 km2 (15,443 sq mi). While the Alps occupy the greater part of the territory, the Swiss population of approximately 8.5 million is concentrated mostly on the plateau, where the largest cities and economic centres are located, among them Zürich, Geneva and Basel. These cities are home to several offices of international organisations such as the headquarters of FIFA, the UN's second-largest Office, and the main building of the Bank for International Settlements. The main international airports of Switzerland are also located in these cities.

Turkey, officially the Republic of Turkey, is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a smaller portion on the Balkan Peninsula in Southeastern Europe. Turkey is bordered on its northwest by Greece and Bulgaria; north by the Black Sea; northeast by Georgia; east by Armenia, Azerbaijan, and Iran; southeast by Iraq; south by Syria and the Mediterranean Sea; and west by the Aegean Sea. Approximately 70 to 80 percent of the country's citizens are Turkish. Istanbul, which straddles Europe and Asia, is the country's largest city, while Ankara is the capital.

Ukraine is a country in Eastern Europe. It is bordered by Russia to the east and north-east; Belarus to the north; Poland, Slovakia and Hungary to the west; and Romania, Moldova, and the Black Sea to the south. Ukraine also borders Crimea to its south, which Russia annexed from Ukraine in 2014, though Ukraine still continues to claim the territory. Including Crimea, Ukraine has an area of 603,628 km2 (233,062 sq mi), making it the second-largest country by area in Europe after Russia, and the 46th-largest country in the world. Excluding Crimea, Ukraine has a population of about 42 million, making it the eighth-most populous country in Europe, and the 34th-most populous country in the world. Its capital and largest city is Kyiv.

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom or Britain, is a sovereign country located off the northwestern coast of the European mainland. The United Kingdom includes the island of Great Britain, the northeastern part of the island of Ireland, and many smaller islands. Northern Ireland shares a land border with the Republic of Ireland. Otherwise, the United Kingdom is surrounded by the Atlantic Ocean, with the North Sea to the east, the English Channel to the south and the Celtic Sea to the southwest, giving it the 12th-longest coastline in the world. The Irish Sea separates Great Britain and Ireland. The total area of the United Kingdom is 94,000 square miles (240,000 km2).

Vatican City, officially the Vatican City State, is the Holy See's independent city state, an enclave within Rome, Italy. The Vatican City State, also known as The Vatican, became independent from Italy with the Lateran Treaty (1929), and it is a distinct territory under "full ownership, exclusive dominion, and sovereign authority and jurisdiction" of the Holy See, itself a sovereign entity of international law, which maintains the city state's temporal, diplomatic, and spiritual independence. With an area of 49 hectares and a population of about 825, it is the smallest sovereign state in the world by both area and population.
