Albania officially the Republic of Albania is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and shares land borders with Montenegro to the northwest, Kosovo to the northeast, North Macedonia to the east and Greece to the south. Tirana is its capital and largest city, followed by Durrës, Vlorë, and Shkodër. Albania displays varied climatic, geological, hydrological, and morphological conditions, defined in an area of 28,748 km2 (11,100 sq mi). It possesses significant diversity with the landscape ranging from the snow-capped mountains in the Albanian Alps as well as the Korab, Skanderbeg, Pindus and Ceraunian Mountains to the hot and sunny coasts of the Albanian Adriatic and Ionian Sea along the Mediterranean Sea.

Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. The capital and largest city is Sarajevo. Bosnia and Herzegovina borders Serbia to the east, Montenegro to the southeast, and Croatia to the north and southwest. In the south it has a narrow coast on the Adriatic Sea within the Mediterranean, which is about 20 kilometres (12 miles) long and surrounds the town of Neum. Bosnia, which is the inland region of the country, has a moderate continental climate with hot summers and cold, snowy winters. In the central and eastern regions of the country, the geography is mountainous, in the northwest it is moderately hilly, and in the northeast it is predominantly flat. Herzegovina, which is the smaller, southern region of the country, has a Mediterranean climate and is mostly mountainous.

Croatia, officially the Republic of Croatia  is a country at the crossroads of Central and Southeast Europe. It shares a coastline along the Adriatic Sea. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the east, Bosnia and Herzegovina and Montenegro to the southeast, and shares a maritime border with Italy to the west and southwest. Croatia's capital and largest city, Zagreb, forms one of the country's primary subdivisions, with twenty counties. The country spans an area of 56,594 square kilometres (21,851 square miles), hosting a population of nearly 3.9 million.

Montenegro is a country in Southeastern Europe. It is located on the Adriatic Sea and is a part of the Balkans, sharing borders with Serbia to the northeast, Bosnia and Herzegovina to the north, Kosovo to the east and Albania to the southeast, the Adriatic Sea and Croatia to the northwest, and a maritime boundary with Italy. Podgorica, the capital and largest city, covers 10.4% of Montenegro's territory of 13,812 square kilometres (5,333 sq mi), and is home to roughly 30% of its total population of 621,000.

Morocco, officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west and has land borders with Algeria to the east, and the disputed territory of Western Sahara to the south.  It spans an area of 446,300 km2 (172,300 sq mi) or 710,850 km2 (274,460 sq mi), with a population of roughly 37 million. Its official and predominant religion is Islam, and the official languages are Arabic and Berber; the Moroccan dialect of Arabic and French are also widely spoken. Moroccan identity and culture is a vibrant mix of Berber, Arab, and European cultures. Western Sahara is a disputed territory on the northwest coast and in the Maghreb region of North and West Africa. About 20% of the territory is controlled by the self-proclaimed Sahrawi Arab Democratic Republic (SADR), while the remaining 80% of the territory is administered by neighboring Morocco. Its surface area amounts to 266,000 square kilometres (103,000 sq mi). It is one of the most sparsely populated territories in the world, mainly consisting of desert flatlands. The population is estimated at just over 500,000, of which nearly 40% live in Laayoune, the largest city in Western Sahara.

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. It is a landlocked country bordering 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 1.83 million people. 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, Aromanians and a few other minorities.

Scotland is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a 96-mile (154-kilometre) border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands.

Serbia, officially the Republic of Serbia, is a landlocked country in Southeastern and Central Europe, situated at the crossroads of the Pannonian Plain and the Balkans. It shares land borders with 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, and claiming a border with Albania through the disputed territory of Kosovo. Serbia with Kosovo has about 8.6 million inhabitants. Its capital Belgrade is also the largest city.

Slovenia officially the Republic of Slovenia, is a country in Central Europe. 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 is mostly mountainous and forested, covers 20,271 square kilometres (7,827 sq mi), and has a population of 2.1 million (2,108,708 people). The Julian Alps in the northwest have an alpine climate. Toward the northeastern Pannonian Plain, a continental climate is more pronounced. Ljubljana, the capital and largest city of Slovenia, is geographically situated near the centre of the country.