Adriatic Sea in the context of Province of Ancona

The Balkans (/ˈbɔːlkənz/ BAWL-kənz, /ˈbɒlkənz/ BOL-kənz), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the whole of Bulgaria. The Balkan Peninsula is bordered by the Adriatic Sea in the northwest, the Ionian Sea in the southwest, the Aegean Sea in the south, the Turkish straits in the east, and the Black Sea in the northeast. The northern border of the peninsula is variously defined. The highest point of the Balkans is Musala, 2,925 metres (9,596 ft), in the Rila mountain range, Bulgaria.

The concept of the Balkan Peninsula was created by the German geographer August Zeune in 1808, who mistakenly considered the Balkan Mountains the dominant mountain system of southeastern Europe spanning from the Adriatic Sea to the Black Sea. In the 19th century the term Balkan Peninsula was a synonym for Rumelia, the parts of Europe that were provinces of the Ottoman Empire at the time. It had a geopolitical rather than a geographical definition, which was further promoted during the creation of Yugoslavia in the early 20th century. The definition of the Balkan Peninsula's natural borders does not coincide with the technical definition of a peninsula; hence modern geographers reject the idea of a Balkan Peninsula, while historical scholars usually discuss the Balkans as a region. The term has acquired a stigmatized and pejorative meaning related to the process of Balkanization. The region may alternatively be referred to as Southeast Europe.

Albania, officially the Republic of Albania, is a country in Southeast Europe. It is located in the Balkans, 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. With an area of 28,748 km (11,100 sq mi), it has a varied range of climatic, geological, hydrological and morphological conditions. Albania's landscapes range from rugged snow-capped mountains in the Albanian Alps and the Korab, Skanderbeg, Pindus and Ceraunian Mountains, to fertile lowland plains extending from the Adriatic and Ionian seacoasts. Tirana is the capital and largest city in the country, followed by Durrës, Vlorë, and Shkodër.

Albania was inhabited by several Illyrian tribes, among them the Ardiaei, Bylliones, Dassaretii, Enchele, and Taulantians, with the Chaonians settled in the southwest. Several colonies were founded by the Ancient Greeks along the Albanian coast, most notably Apollonia. The Illyrians were the dominant power in Albania before the rise of Macedon. Following the Illyrian Wars, Albania was integrated into the Roman Empire and remained in the Byzantine Empire after its partition. During the Middle Ages, several Albanian principalities emerged, most notably the Principality of Arbanon, Kingdom of Albania, Principality of Albania and Albania Veneta. In the 15th century, Albania became a center of resistance against Ottoman expansion under the leadership of Gjergj Kastrioti Skanderbeg, whose military campaigns repelled Ottoman advances for over two decades. Although incorporated into the Ottoman Empire, Albania retained distinct cultural and social identities throughout four centuries of foreign rule, culminating in the Albanian Renaissance in the 19th century. Albania declared independence in 1912, followed by a turbulent 20th century marked by monarchy, foreign occupation during both World Wars, and a repressive communist regime under Enver Hoxha.

The Ionian Sea is an elongated bay of the Mediterranean Sea. It is connected to the Adriatic Sea to the north, and is bounded by Southern Italy, including Basilicata, Calabria, Sicily, and the Salento peninsula to the west, southern Albania (and western Apulia, Italy) to the north, and the west coast of Greece, including the Peloponnese.

All major islands in the sea, which are located in the east of the sea, belong to Greece. They are collectively named the Ionian Islands, the main ones being Corfu, Kefalonia, Zakynthos, Lefkada, and Ithaca.

The Mediterranean Sea (/ˌmɛdɪtəˈreɪniən/ MED-ih-tə-RAY-nee-ən) is an intercontinental sea situated between Europe, Asia, and Africa. It is surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Europe, and on the south by North Africa. To its west it is connected to the Atlantic Ocean via the Strait of Gibraltar that separates the Iberian Peninsula in Europe from Morocco in Africa by only 14 km (9 mi); additionally, it is connected to the Black Sea through the Bosporus strait that intersects Turkey in the northeast and the Red Sea via the Suez Canal in the southeast.

The Mediterranean Sea covers an area of about 2,500,000 km (970,000 sq mi), representing 0.7% of the global ocean surface; it includes fifteen marginal seas, including the Aegean, Adriatic, Tyrrhenian, and Marmara. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago.

Montenegro is a country in Southeast Europe, on the Balkan Peninsula. Its 25 municipalities have a total population of 633,158 people in an area of 13,883 km (5,360 sq mi). It is bordered by Serbia to the northeast, Bosnia and Herzegovina to the northwest, Kosovo to the east, Albania to the southeast, and Croatia to the west, and has a coastline along the Adriatic Sea to the southwest. The capital and largest city is Podgorica, while Cetinje is the Old Royal Capital and cultural centre.

Before the arrival of the Slav peoples in the Balkans in the 6th and 7th centuries CE, the area now known as Montenegro was inhabited principally by people known as Illyrians.During the Early Medieval period, three principalities were located on the territory of modern-day Montenegro: Duklja, roughly corresponding to the southern half; Travunia, the west; and Rascia proper, the north. The Principality of Zeta emerged in the 14th and 15th centuries. From the late 14th century to the late 18th century, large parts of southern Montenegro were ruled by the Venetian Republic and incorporated into Venetian Albania. The name Montenegro was first used to refer to the country in the late 15th century. After falling under Ottoman Empire rule, Montenegro gained semi-autonomy in 1696 under the rule of the House of Petrović-Njegoš, first as a theocracy and later as a secular principality. Montenegro's independence was recognised by the Great Powers at the Congress of Berlin in 1878. In 1910, the country became a kingdom. After World War I, the kingdom became part of Yugoslavia. Following the breakup of Yugoslavia, the republics of Serbia and Montenegro together proclaimed a federation. In June 2006 Montenegro declared its independence following a referendum.

The Accursed Mountains (Albanian: Bjeshkët e Nemuna; Serbo-Croatian: Prokletije / Проклетије, pronounced [prɔklɛ̌tijɛ]; both translated as "Cursed Mountains"), also known as the Albanian Alps (Albanian: Alpet Shqiptare; Serbo-Croatian: Albanski Alpi / Албански Алпи), is a mountain range in coastal Southeast Europe adjacent to the Adriatic Sea. It is the southernmost subrange of the 1,000-kilometre-long (621 mi) Dinaric Alps range (Dinarides), extending from northern Albania to western Kosovo and northeastern Montenegro. Maja Jezercë, standing at 2,694 m (8,839 ft), is the highest point of the Accursed Mountains and of all Dinaric Alps, and the fifth highest peak in Albania. The range includes the mountain Zla Kolata, which, at 2,534 m (8,314 ft), is the tallest mountain in Montenegro. The range also includes the mountain Gjeravica, which, at 2,656 m (8,714 ft), is the second tallest mountain in Kosovo. One of the southernmost glacial masses in Europe was discovered in the Albanian part of the range in 2009.

The Ceraunian Mountains (Albanian: Malet e Vetëtimës, Albanian pronunciation: [ˈmalet e vetəˈtiməs], 'Thunderbolt Mountains') are a coastal mountain range in southwestern Albania, within the Vlorë County.

The mountain range rises on the northeastern bank of the Ionian Sea and protrudes into the Adriatic Sea. It extends for approximately 100 km (62 mi) in a southeast-northwest direction near Sarandë, along the Albanian Riviera, close to Orikum. Geologically, the Karaburun Peninsula belongs to the Ceraunian Mountains, and is separated from the rest by the Llogara Pass (1,027 metres (3,369 ft)) forming the western part of the Ceraunian mountain range, called Acroceraunian Mountains (Albanian: Malet Akrokeraune). The mountains are about 24 km (15 mi) long and about 4–7 km (2.5–4.3 mi) wide. The highest peak is Çikë with an elevation of 2,044 metres (6,706 ft).

The Albanian Adriatic Sea Coast (Albanian pronunciation: [brɛˈɡdɛ:ti adriˈa:tik] — Albanian: Bregdeti Adriatik) stretches in the south-eastern Adriatic Sea beginning at the Gulf of Drin in the north, across the port cities of Shëngjin, Durrës, and Vlorë, to the Bay of Vlorë in the south, where the Albanian Riviera and the Albanian Ionian Sea Coast begin.

Albania is geographically located in Southern and South-eastern Europe within the Balkan Peninsula. It borders on Montenegro to the north-west, Kosovo to the north-east, North Macedonia to the east, Greece to the south, and the Mediterranean Sea to the west. The total length of the coastline is approximately 274 kilometres (170 mi), 178 kilometres (111 mi) of which are taken up by white sandy beaches and the rest by various other landforms.

Tirana (/tɪˈrɑːnə/ tih-RAH-nə, Albanian pronunciation: [tiˈɾana]; Gheg Albanian: Tirona) is the capital and largest city of Albania. It is located in the centre of the country, enclosed by mountains and hills, with Dajti rising to the east and a slight valley to the northwest overlooking the Adriatic Sea in the distance. It is among the wettest and sunniest cities in Europe, with 2,544 hours of sun per year.

Tirana was founded in 1614 by Ottoman Albanian general Sylejman Pasha Bargjini, centered on the Old Mosque and türbe. The site of present-day Tirana has been continuously inhabited since the Iron Age and was likely the core of the Illyrian kingdom of the Taulantii, which in classical antiquity was centred in the hinterland of Epidamnus. Following the Illyrian Wars, it was annexed by the Roman Empire. With the collapse of the Western Roman Empire in the fourth century, most of Albania came under the control of the Eastern Roman Empire. The city was fairly unimportant until the 20th century, when the Congress of Lushnjë proclaimed it as Albania's capital after the Albanian Declaration of Independence in 1912.

Durrës (/ˈdʊrəs/ DUURR-əs, Albanian: [ˈdurəs]; Albanian definite form: Durrësi) is the second most populous city of the Republic of Albania and seat of Durrës County and Durrës Municipality. It is one of Albania's oldest continuously inhabited cities, with roughly 2,500 years of recorded history. It is located on a flat plain along the Albanian Adriatic Sea Coast between the mouths of the Erzen and Ishëm at the southeastern corner of the Adriatic Sea. Durrës's climate is profoundly influenced by a seasonal Mediterranean climate.

Durrës was founded under the name of Epidamnos around the 7th century BC, by ancient Greek colonists from Corinth and Corcyra in cooperation with the Taulantii, a local Illyrian tribe. Also known as Dyrrachium, Durrës developed as it became an integral part of the Roman Empire and its successor the Byzantine Empire. The Via Egnatia started in the city and led east across the fields, lowlands and highlands of the Balkan Peninsula to Constantinople.

Shkodër (/ˈʃkoʊdər/ SHKOH-dər, Albanian: [ˈʃkɔdəɾ]; Albanian definite form: Shkodra; historically known as Scodra or Scutari) is the fifth-most-populous city of Albania and the seat of Shkodër County and Shkodër Municipality. Shkodër has been continuously inhabited since the Early Bronze Age (c. 2250–2000 BC), and has roughly 2,200 years of recorded history. The city sprawls across the Plain of Mbishkodra between the southern part of Lake Shkodër and the foothills of the Albanian Alps on the banks of the Buna, Drin and Kir rivers. Due to its proximity to the Adriatic Sea, Shkodër is affected by a seasonal Mediterranean climate with continental influences.

An urban settlement called Skodra was founded by the Illyrian tribe of Labeatae in the 4th century BCE. It became the capital of the Illyrian kingdom under the Ardiaei and Labeatae and was one of the most important cities of the Balkans in ancient times. It has historically developed on a 130 m (430 ft) hill strategically located in the outflow of Lake Shkodër into the Buna. The Romans annexed the city after the third Illyrian War in 168 BC, when the Illyrian king Gentius was defeated by the Roman force of Anicius Gallus. In the 3rd century AD, Shkodër became the capital of Praevalitana, due to the administrative reform of the Roman Emperor Diocletian. With the spread of Christianity in the 4th century AD, the Archdiocese of Scodra was founded and was assumed in 535 by Byzantine Emperor Justinian I.

The Enchelei were an ancient people that lived around the River Drin and the region of Lake Shkodra and Lake Ohrid, in modern-day Albania, Montenegro, and North Macedonia. They are one of the oldest known peoples of the eastern shore of the Adriatic Sea. In ancient sources they sometimes appear as an ethnic group distinct from the Illyrians, but they are mostly mentioned as one of the Illyrian tribes. They held a central position in the earlier phase of Illyrian history. In ancient Greek literature they are linked with the end of the mythical narrative of Cadmus and Harmonia, a tradition deeply rooted among the Illyrian peoples.

The name Sesarethii/Sesarethioi was used by Strabo as an alternative name for the Enchelei in the lakeland area of Ohrid. Mentioned for the first time by Hecataeus of Miletus in the 6th century BC, the name Sesarethii/Sesarethioi is also considered a variant of Dassaretii/Dassaretioi, an Illyrian tribe that has been recorded since Roman times and that is attested in coinage and inscriptions found around lake Ohrid. The weakening of the kingdom of the Enchelei presumably led to Enchelei's assimilation and inclusion into a newly established Illyrian realm at the latest in the 6th–5th centuries BC, marking the arising of the Dassaretii, who appear to have replaced the Enchelei in the lakeland area. During Classical and Hellenistic antiquity the Enchelei were more a historical memory than a contemporary group.

Apollonia (Ancient Greek, Koine Greek: Ἀπολλωνία; demonym: Ἀπολλωνιάτης, Apolloniates; Latin: Apollonia) was an Ancient Greek trade colony which developed into an independent polis, and later a Roman city, in southern Illyria. It was located on the right bank of the Aoös/Vjosë river, approximately 10 km from the eastern coast of the Adriatic Sea. Its ruins are situated in the county of Fier, close to the village of Pojan, in Albania.

Apollonia was perhaps the most important of the several classical towns of the same name. It was founded around 600 BC by Greek colonists from Corinth and possibly Corcyra, who established a trading settlement on a largely abandoned coastal site by invitation of the local Illyrians. Corinthian colonial policy seems to have been relatively liberal, focused on resource extraction for the support of their homeland, rather than exploitation or expulsion of the local Illyrian population. Apollonia gradually gained political independence from Corinth and was organized as a polis under an oligarchic system. Aristotle describes Apollonia's oligarchy as a small Greek elite class, largely descended from the original colonists, ruling over a largely local Illyrian population.

The Illyrian Wars were a series of wars fought between the Roman Republic and the Illyrian kingdom under the Ardiaei and Labeatae. In the First Illyrian War, which lasted from 229 BC to 228 BC, Rome's concern was that the trade across the Adriatic Sea increased after the First Punic War at a time when Ardiaei power increased under queen Teuta. Attacks on trading vessels of Rome's Italic allies by Illyrian pirates and the death of a Roman envoy named Coruncanius on Teuta's orders, prompted the Roman senate to dispatch a Roman army under the command of the consuls Lucius Postumius Albinus and Gnaeus Fulvius Centumalus. Rome expelled Illyrian garrisons from a number of Greek cities including Epidamnus, Apollonia, Corcyra, Pharos and established a protectorate over these Greek towns. The Romans also set up Demetrius of Pharos as a power in Illyria to counterbalance the power of Teuta.

The Second Illyrian War lasted from 220 BC to 219 BC. In 219 BC, the Roman Republic was at war with the Celts of Cisalpine Gaul, and the Second Punic War with Carthage was beginning. These distractions gave Demetrius the time he needed to build a new Illyrian war fleet. Leading this fleet of 90 ships, Demetrius sailed south of Lissus, violating his earlier treaty and starting the war. Demetrius' fleet first attacked Pylos, where he captured 50 ships after several attempts. From Pylos, the fleet sailed to the Cyclades, quelling any resistance that they found on the way. Demetrius foolishly sent a fleet across the Adriatic, and, with the Illyrian forces divided, the fortified city of Dimale was captured by the Roman fleet under Lucius Aemilius Paulus. From Dimale the navy went towards Pharos. The forces of Rome routed the Illyrians and Demetrius fled to Macedon, where he became a trusted councillor at the court of Philip V of Macedon, and remained there until his death at Messene in 214 BC.

Venetian Albania (Venetian: Albania vèneta, Italian: Albania Veneta, Albanian: Arbëria Venedikase, Serbo-Croatian: Mletačka Albanija, Млетачка Албанија) was the official term for several possessions of the Republic of Venice in the southeastern Adriatic, encompassing coastal territories primarily in present-day southern Montenegro and partially in northern Albania.

Several major territorial changes occurred during the Venetian rule in those regions, starting from 1392, and lasting until 1797. By the end of the 15th century, the main possessions in northern Albania had been lost to the expansion of the Ottoman Empire. In spite of that, Venetians did not want to renounce their formal claims to the Albanian coast, and the term Venetian Albania was officially kept in use, designating the remaining Venetian possessions in coastal Montenegro, centred around the Bay of Kotor. Albanian piracy flourished during this period. Those regions remained under Venetian rule until the fall of the Republic of Venice in 1797. By the Treaty of Campo Formio, the region was transferred to the Habsburg monarchy.

The First Bulgarian Empire (Church Slavonic: блъгарьско цѣсарьствиѥ, romanized: blŭgarĭsko tsěsarǐstvije; Bulgarian: Първо българско царство) was a medieval state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh, moved south to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeating – possibly with the help of local South Slavic tribes – the Byzantine army led by Constantine IV. During the 9th and 10th century, Bulgaria at the height of its power spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea and became an important power in the region competing with the Byzantine Empire.

As the state solidified its position in the Balkans, it entered into a centuries-long interaction, sometimes friendly and sometimes hostile, with the Byzantine Empire. Bulgaria emerged as Byzantium's chief antagonist to its north, resulting in several wars. The two powers also enjoyed periods of peace and alliance, most notably during the Second Arab Siege of Constantinople, where the Bulgarian army broke the siege and destroyed the Arab army, thus preventing an Arab invasion of Southeastern Europe. Byzantium had a strong cultural influence on Bulgaria, which also led to the eventual adoption of Christianity in 864. After the disintegration of the Avar Khaganate, the country expanded its territory northwest to the Pannonian Plain. Later the Bulgarians confronted the advance of the Pechenegs and Cumans, and achieved a decisive victory over the Magyars, forcing them to establish themselves permanently in Pannonia.

The Second Bulgarian Empire (Middle Bulgarian: Ц(а)рьство бл(ъ)гарское; Modern Bulgarian: Второ българско царство, romanized: Vtoro Balgarsko Tsarstvo) was a medieval Bulgarian state that existed between 1185 and 1422. A successor to the First Bulgarian Empire, it reached the peak of its power under Tsars Kaloyan and Ivan Asen II before gradually being conquered by the Ottomans in the late 14th century.

Until 1256, the Second Bulgarian Empire was the dominant power in the Balkans, defeating the Byzantine Empire in several major battles. In 1205, Emperor Kaloyan defeated the newly established Latin Empire in the Battle of Adrianople. His nephew Ivan Asen II defeated the Despotate of Epiros and made Bulgaria a regional power again. During his reign, Bulgaria spread from the Adriatic to the Black Sea and the economy flourished. In the late 13th century, however, the Empire declined under constant invasions by Mongols, Byzantines, Hungarians, and Serbs, as well as internal unrest and revolts. The 14th century saw a temporary recovery and stability, but also the peak of Balkan feudalism as central authorities gradually lost power in many regions. Bulgaria was divided into three parts on the eve of the Ottoman invasion.