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South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and the Sea of Japan to the east. South Korea claims to be the sole legitimate government of the entire peninsula and adjacent islands. It has a population of about 52 million, of which half live in the Seoul metropolitan area, the ninth most populous metropolitan area in the world; other major cities include Busan, Daegu, and Incheon.

South Ossetia, formally the State of Alania since 2017, or originally the Republic of South Ossetia is a partially recognised state in the South Caucasus. It has an officially stated population of just over 56,500 people (2022), who live in an area of 3,900 square kilometres (1,500 sq mi), with 33,000 living in the capital city, Tskhinvali. It borders only Russia and Georgia.

South Papua, officially the South Papua Province (Indonesian: Provinsi Papua Selatan) is an Indonesian province located in the southern portion of Papua, following the borders of the Papuan customary region of Anim Ha. Formally established on 25 July 2022 and including the four most southern regencies that were previously part of the province of Papua and before 11 December 2002 had been a single larger Merauke Regency, it covers a land area of 117,849.16 km2, about the same area as Pennsylvania or Kirov Oblast (or 90% of that of England). This area had a population of 513,617 at the 2020 Census, while the official estimate as at mid 2024 was 542,075 (281,466 males and 260,609 females), making it the least populous province in Indonesia.

South Sudan (/suːˈdɑːn, -ˈdæn/), officially the Republic of South Sudan, is a landlocked country in East Africa. It is bordered by Sudan to the north, Ethiopia to the east, the Democratic Republic of the Congo to the southwest, Uganda to the south, Kenya to the southeast and to the west by the Central African Republic. South Sudan's diverse landscape includes vast plains and plateaus, dry and tropical savannahs, inland floodplains, and forested mountains. The Nile River system is the defining physical feature of the country, running south to north across its center, which is dominated by a large swamp known as the Sudd. South Sudan has an estimated population of just over 12.7 million in 2024. Juba is the capital and largest city.

Southwest Papua (Indonesian: Papua Barat Daya; Indonesian pronunciation: [papʊa barat daja]) is the 38th province of Indonesia to be created and was split off from West Papua (province) on 8 December 2022. Despite being named "southwest", this is actually a misnomer and this province is actually located at the northwest corner of Indonesian Papua. The province comprises the Greater Sorong area (Indonesian: Sorong Raya; Indonesian pronunciation: [ˌsɔrɔŋ ˈraja]) which consists of Sorong City, Sorong Regency, South Sorong Regency, Maybrat Regency, Tambrauw Regency, and Raja Ampat Regency. The Bill (RUU) on the Establishment of the Southwest Papua Province was passed into law (by Act No. 29 of 2022), and it became the 38th province in Indonesia with effect from 8 December 2022.

Spain, officially the Kingdom of Spain, is a country in Southern and Western Europe with territories in North Africa. Featuring the southernmost point of continental Europe, it is the largest country in Southern Europe and the fourth-most populous European Union (EU) member state. Spanning the majority of the Iberian Peninsula, its territory also includes the Canary Islands, in the Eastern Atlantic Ocean; the Balearic Islands, in the Western Mediterranean Sea; and the autonomous cities of Ceuta and Melilla, in mainland Africa. Peninsular Spain is bordered to the north by France, Andorra, and the Bay of Biscay; to the east and south by the Mediterranean Sea and Gibraltar; and to the west by Portugal and the Atlantic Ocean. Spain's capital and largest city is Madrid; other major urban areas include Barcelona, Valencia, Seville, Zaragoza, Málaga, Murcia, and Palma de Mallorca.

Sri Lanka,[a] officially the Democratic Socialist Republic of Sri Lanka, formerly known as Ceylon, is an island country in South Asia. It is located in the Indian Ocean, southwest of the Bay of Bengal, and is separated from India by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with the Maldives to the southwest and India to the northwest, and lies across the Bay of Bengal from Bangladesh and Myanmar to the northeast and the Andaman and Nicobar Islands of India to the east. Its capital is Sri Jayawardenepura Kotte, while Colombo is its largest city and the political, financial and cultural centre. Sri Lanka's population is 22 million; with the Sinhalese people, who speak the Sinhala language, forming the vast majority—while Tamil is spoken by the large Tamil minority. Other long-established ethnic groups include the Moors, Indian Tamils, Burghers, Malays, Chinese, and Vedda.

Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopia to the southeast, and South Sudan to the south. Sudan has a population of 51.8 million people as of 2025[25] and occupies 1,886,068 square kilometres (728,215 square miles), making it Africa's third-largest country by area. Sudan's capital and most populous city is Khartoum.

Suriname, officially the Republic of Suriname, is a country in northern South America, also considered as part of the Caribbean and the West Indies. Situated slightly north of the equator, over 90% of its territory is covered by rainforest, the highest proportion of forest cover in the world. Suriname is bordered by the Atlantic Ocean to the north, France (French Guiana) to the east, Guyana to the west, and Brazil to the south. It is the smallest country in South America by both population and territory, with around 612,985 inhabitants in 2021 in an area of approximately 165,940 square kilometers (64,070 square miles). The capital and largest city is Paramaribo, which is home to roughly half the population.

Svalbard (US: /ˈsvɑːlbɑːr(d)/ SVAHL-bar(d), UK: also /ˈsvæl-/ SVAL-,[4][5][6] Urban East Norwegian: [ˈsvɑ̂ːɫbɑr]), formerly Spitsbergen or Spitzbergen, is a Norwegian archipelago that lies at the convergence of the Arctic Ocean with the Atlantic Ocean. North of mainland Europe, it lies about midway between the northern coast of Norway and the North Pole. The islands of the group range from 74° to 81° north latitude, and from 10° to 35° east longitude. The largest island is Spitsbergen (37,673 km2), followed in size by Nordaustlandet (14,443 km2), Edgeøya (5,073 km2), and Barentsøya (1,288 km2). Bjørnøya or Bear Island (178 km2) is the most southerly island in the territory, situated some 147 km south of Spitsbergen. Other small islands in the group include Hopen to the southeast of Edgeøya, Kongsøya and Svenskøya in the east, and Kvitøya to the northeast. The largest settlement is Longyearbyen, situated in Isfjorden on the west coast of Spitsbergen.

Svalbard (US: /ˈsvɑːlbɑːr(d)/ SVAHL-bar(d), UK: also /ˈsvæl-/ SVAL-,[4][5][6] Urban East Norwegian: [ˈsvɑ̂ːɫbɑr]), formerly Spitsbergen or Spitzbergen, is a Norwegian archipelago that lies at the convergence of the Arctic Ocean with the Atlantic Ocean. North of mainland Europe, it lies about midway between the northern coast of Norway and the North Pole. The islands of the group range from 74° to 81° north latitude, and from 10° to 35° east longitude. The largest island is Spitsbergen (37,673 km2), followed in size by Nordaustlandet (14,443 km2), Edgeøya (5,073 km2), and Barentsøya (1,288 km2). Bjørnøya or Bear Island (178 km2) is the most southerly island in the territory, situated some 147 km south of Spitsbergen. Other small islands in the group include Hopen to the southeast of Edgeøya, Kongsøya and Svenskøya in the east, and Kvitøya to the northeast. The largest settlement is Longyearbyen, situated in Isfjorden on the west coast of Spitsbergen.

Eswatini, formally the Kingdom of Eswatini (historically called KaNgwane), also known by its former official names Swaziland and the Kingdom of Swaziland, is a landlocked country in Southern Africa. It is bordered by South Africa on all sides except the northeast, where it shares a border with Mozambique. At no more than 200 km (120 mi) north to south and 130 km (81 mi) east to west, Eswatini is one of the smallest countries in Africa. However, its climate and topography are diverse, ranging from a cool and mountainous highveld to a hot and dry lowveld. The executive capital and largest city is Mbabane, and the legislative and second capital is Lobamba.

Sweden, formally the Kingdom of Sweden, is a Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At 450,295 square kilometres (173,860 sq mi), Sweden is the largest Nordic country by both area and population, and is the fifth-largest country in Europe. Its capital and largest city is Stockholm. Sweden has a population of 10.6 million, and a low population density of 25.5 inhabitants per square kilometre (66/sq mi); 88% of Swedes reside in urban areas. They are mostly in the central and southern half of the country. Sweden's urban areas together cover 1.5% of its land area. Sweden has a diverse climate owing to the length of the country, which ranges from 55°N to 69°N.

Switzerland, officially the Swiss Confederation, is a landlocked country located at the intersection of Central, Western, and Southern Europe. It is bordered by Germany to the north, France to the west, Austria and Liechtenstein to the east, and Italy to the south. Switzerland is geographically divided among the Swiss Alps, the Swiss Plateau, and the Jura mountains; the Alps cover most of the country's territory, whereas the majority of its 9 million people are concentrated on the plateau, which hosts many of the largest cities and economic centres, including Zurich, Geneva, Basel, Bern, Lausanne, Winterthur, and Lucerne.

Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to the north and northwest, Iraq to the east and southeast, Jordan to the south, and Israel and Lebanon to the southwest. It is a republic under a provisional government and comprises 14 governorates. Damascus is the capital and largest city. With a population of 26 million across an area of 185,180 square kilometres (71,500 sq mi), it is the 56th-most populous and 87th-largest country.