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 with Finland on the other side, to the west by the Baltic Sea with Sweden on the other side, to the south by Latvia (343 km), and to the east by Lake Peipus and Russia (338.6 km). 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). The official language of the country, Estonian, is the second-most-spoken Finnic language.  In 1987 the peaceful Singing Revolution began against Soviet rule, resulting in the restoration of de facto independence on 20 August 1991. The sovereign state of Estonia is a democratic unitary parliamentary republic divided into fifteen counties. Its capital and largest city is Tallinn. With a population of 1.3 million Estonia is one of the least populous members of the European Union. Estonian citizens receive universal health care, free education,  and the longest paid maternity leave in the OECD. Estonia is one of the world's most digitally-advanced societies.

The Faroe Islands or the Faeroe Islands, is a North Atlantic archipelago located 320 kilometres (200 mi) north-northwest of Scotland, and about halfway between Norway and Iceland. It is an autonomous territory within the Kingdom of Denmark. The islands have a total area of about 1,400 square kilometres (540 sq mi) with a population of 52,110 as of January 2020. The terrain is rugged; the climate is subpolar oceanic climate - windy, wet, cloudy, and cool. The Faroe Islands have been a self-governing part of the Kingdom of Denmark since 1948, controlling most areas apart from military defence, policing, justice, currency, and foreign affairs. Because the Faroe Islands are not part of the same customs area as Denmark, the country has an independent trade policy, and can establish trade agreements with other states. In certain sports, the Faroe Islands field their own national teams.

Finland, officially the Republic of Finland, is a Nordic country in Northern Europe bordering the Baltic Sea, Gulf of Bothnia, and Gulf of Finland, between Sweden to the west, Russia to the east, Estonia to the south, and north-eastern Norway to the north. The capital and largest city is Helsinki. Finland's population is 5.53 million as of March 2020, the majority of whom live in the central and south of the country and speak Finnish, a Finnic language from the Uralic language family, unrelated to the Scandinavian languages. It is a parliamentary republic of 310 municipalities, and includes an autonomous region, the Åland Islands. A large majority of Finns are members of the Evangelical Lutheran Church. During World War II, Finland fought the Soviet Union in the Winter War and the Continuation War and lost some land, but maintained independence. Finland remained largely an agrarian country until the 1950s. After World War II, the war reparations demanded by the Soviet Union forced Finland to industrialise. Finland is a top performer in numerous metrics of national performance, including education, economic competitiveness, civil liberties, quality of life, and human development.

France, officially the French Republic, is a country whose territory consists of metropolitan France in Western Europe and several overseas regions and territories. The metropolitan area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is bordered by 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 (five of which are situated overseas) span a combined area of 643,801 square kilometres (248,573 sq mi) and a total population of 67.08 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 has long been a global centre of art, science, and philosophy. France is considered a great power in global affairs.

Georgia is a 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 south by Turkey and Armenia, and to the southeast by Azerbaijan. The capital and largest city is Tbilisi. Georgia covers a territory of 69,700 square kilometres (26,911 sq mi), and its 2017 population is about 3.718 million. Georgia is a unitary parliamentary republic, with the government elected through a representative democracy.  Following the bloodless Rose Revolution in 2003, Georgia strongly pursued a pro-Western foreign policy. The country's Western orientation soon led to the worsening of relations with Russia, culminating in the brief Russo-Georgian War in August 2008 and Georgia's current territorial dispute with Russia. Most of the world's countries consider the regions Abkhazia and South Ossetia to be Georgian territory under Russian occupation.

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. Today, Germany is a federal parliamentary republic led by a chancellor. With 83 million inhabitants of its 16 constituent states, it is the second-most populous country in Europe after Russia, as well as the most populous member state of the European Union. Its capital and largest city is Berlin, and its financial centre is Frankfurt; the largest urban area is the Ruhr. Germany has the largest economy in Europe. A highly developed country with a very high standard of living, it offers social security and a universal health care system, environmental protections, and a tuition-free university education.

Greece, officially the Hellenic Republic, known also as Hellas, is a country located in Southeast Europe. Its population is approximately 10.7 million as of 2018; Athens, the nation's capital, is its largest city, followed by Thessaloniki. Situated on the southern tip of the Balkan Peninsula, Greece is located at the crossroads of Europe, Asia, and Africa. It shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to the northeast. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, the Cretan Sea and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin featuring many islands, of which 227 are inhabited. Eighty percent of Greece is mountainous, with Mount Olympus being the highest peak at 2,918 metres (9,573 ft).  Greece is considered the cradle of Western civilisation. Greece emerged as a modern nation state in 1830 following a war of independence. Greece is a unitary parliamentary republic and developed country with an advanced high-income economy.

Guernsey is an island in the English Channel off the coast of Normandy. It lies roughly north of Saint-Malo and to the west of Jersey and the Cotentin Peninsula. With several smaller nearby islands, it forms a jurisdiction within the Bailiwick of Guernsey, a British Crown dependency. The jurisdiction is made up of ten parishes on the island of Guernsey, three other inhabited islands (Herm, Jethou and Lihou) and many small islets and rocks. The jurisdiction is not part of the United Kingdom, although defence and most foreign relations are handled by the British Government. The entire jurisdiction lies within the Common Travel Area of the British Islands and the Republic of Ireland. Taken together with the separate jurisdictions of Alderney and Sark it forms the Bailiwick of Guernsey. The two Bailiwicks of Guernsey and Jersey together form the geographical grouping known as the Channel Islands.

Ireland is an island in the North Atlantic. It is separated from Great Britain to its east by the North Channel, the Irish Sea, and St George's Channel. Ireland is the second-largest island of the British Isles and the third-largest in Europe. Geopolitically, Ireland is divided between the Republic of Ireland (officially named Ireland), which covers five-sixths of the island, and Northern Ireland, which is part of the United Kingdom. In 2011, the population of Ireland was about 6.6 million, ranking it the second-most populous island in Europe after Great Britain. As of 2016, 4.8 million live in the Republic of Ireland, and 1.8 million live in Northern Ireland. The geography of Ireland comprises relatively low-lying mountains surrounding a central plain, with several navigable rivers extending inland. Its lush vegetation is a product of its mild but changeable climate which is free of extremes in temperature. Irish culture has had a significant influence on other cultures, especially in the field of literature. Alongside mainstream Western culture, a strong indigenous culture exists, as expressed through Gaelic games, Irish music and the Irish language. The island's culture shares many features with that of Great Britain, including the English language, and sports.

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK or U.K.) 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. The United Kingdom is a unitary parliamentary democracy and constitutional monarchy. The current monarch is Queen Elizabeth II, who has reigned since 1952, making her the world's longest-serving current head of state. The United Kingdom's capital is London, a global city and financial centre with an urban area population of 10.3 million. Other major cities include Birmingham, Glasgow, Leeds, Liverpool, and Manchester. The United Kingdom consists of four constituent countries: England, Scotland, Wales and Northern Ireland. Their capitals are London, Edinburgh, Cardiff and Belfast, respectively. Apart from England, the countries have their own devolved governments, each with varying powers, but such power is delegated by the Parliament of the United Kingdom, which may enact laws unilaterally altering or abolishing devolution.