From Serbia to Yugoslavia and Back: How One Uprising Built a State and How It Came Apart (1804–2026)

An Uprising in the Sanjak of Smederevo

In February 1804 a group of Serb village leaders met at Orašac, south of Belgrade, and chose a livestock trader called Karađorđe Petrović to lead a revolt. Their target was not yet the Sultan but the Dahije, renegade janissaries who had seized the Sanjak of Smederevo, the Ottoman district around Belgrade, and murdered dozens of local notables. Within three years the rebels held Belgrade itself. A little more than a century later the dynasty of that uprising ruled a kingdom that stretched from the Alps to Macedonia, and within another ninety years the state it led had broken into seven.

The map follows that arc in 43 steps over the territory of the former Yugoslavia, with one layer that follows Serbia through every form it took: rebel province, autonomous principality, kingdom, heart of two Yugoslavias, Federal Republic, and Serbia alone again since 2006.

From Pashalik to Kingdom (1804–1912)

The First Serbian Uprising reached its height around 1811 and collapsed in October 1813, when Ottoman armies retook Belgrade and Karađorđe fled to Austria. Two years later Miloš Obrenović raised a second revolt at Takovo, and this time he negotiated rather than fought to the end. A Serbian assembly named him hereditary prince in 1817 (after Karađorđe, who had come back, was murdered on his orders), and in 1830 the Sultan recognised Serbia as an autonomous principality; six more districts were added in 1833. The last Ottoman garrisons left in 1867.

While Serbia was being born, the western half of the map changed hands several times. Dalmatia, Venetian until 1797, passed to Napoleon's Kingdom of Italy in 1806, the Russians and Montenegrins held the Bay of Kotor until 1807, and the French ended the old Republic of Ragusa (Dubrovnik) in 1808. In 1809 Austria had to cede Carniola, Istria and Croatia south of the Sava, which Napoleon joined with Dalmatia, Ragusa and Kotor into the Illyrian Provinces, with their capital at Ljubljana. The Austrians took it all back in 1813–14, and for the next century the Habsburgs held the north and west of the future Yugoslavia while the Ottomans held the south.

The Congress of Berlin in July 1878 made Serbia and Montenegro independent and enlarged both: Serbia gained Niš, Pirot and Vranje, and Montenegro doubled in size and reached the sea at Bar, adding Ulcinj in 1880. The same congress let Austria-Hungary occupy Bosnia and Herzegovina, which it annexed outright in October 1908. Serbia became a kingdom in 1882.

Balkan Wars and the First Yugoslavia (1912–1941)

In the First Balkan War of 1912 Serbia, Montenegro, Greece and Bulgaria drove the Ottomans almost out of Europe; Serbia's victory at Kumanovo opened the way to Skopje. When the allies fell out over the spoils in 1913, Serbia kept Vardar Macedonia and divided Kosovo and the Sanjak of Novi Pazar with Montenegro, and the kingdom nearly doubled in size. A year later Gavrilo Princip, a Bosnian Serb, shot Archduke Franz Ferdinand in Sarajevo, and Austria-Hungary's ultimatum to Serbia started the First World War. Serbia beat back the first invasion at Cer, but at the end of 1915 it was overrun from three sides, and its army and government retreated over the Albanian mountains to Corfu.

Defeat of the Central Powers turned the map upside down in five weeks. On 29 October 1918 the Habsburg South Slavs proclaimed the State of Slovenes, Croats and Serbs; in late November assemblies in Novi Sad and Podgorica joined Vojvodina and Montenegro to Serbia; and on 1 December the two united as the Kingdom of Serbs, Croats and Slovenes under the Serbian Karađorđević dynasty. Italy, promised the Adriatic coast in 1915, took Istria, Zadar and several islands in the Treaty of Rapallo of 1920 and Rijeka in 1924. In 1929 King Alexander suspended the constitution and renamed the country Yugoslavia, a kingdom run from Belgrade that many Croats never accepted.

Partition, Tito and the Lines of Trieste (1941–1991)

In April 1941 Germany and its allies invaded and carved Yugoslavia up. Germany annexed northern Slovenia and occupied Serbia; Italy took Ljubljana and much of Dalmatia, occupied Montenegro and attached most of Kosovo to Italian-ruled Albania; Hungary took Bačka, Baranja, Međimurje and Prekmurje; Bulgaria took most of Macedonia; and the Ustaše regime of the Independent State of Croatia ruled Croatia and Bosnia, running the Jasenovac camp system. Tito's Partisans, who met at Jajce in November 1943 to plan a federal state of six republics, entered Belgrade with the Red Army in October 1944, and the Federal People's Republic was proclaimed on 29 November 1945.

Its western border took nine more years. In 1945 the Allies split the disputed Italian lands along the Morgan Line: Zone A, with Trieste, Gorizia, the upper Soča valley and an enclave around Pula, under Anglo-American military government, and Zone B under Yugoslav military administration. The Paris peace treaty, in force on 15 September 1947, gave Yugoslavia most of Istria, Rijeka, Zadar and the islands, and made Trieste and the Koper–Buje strip a Free Territory. The London Memorandum of October 1954 handed its Zone B to Yugoslavia (the Treaty of Osimo made it final in 1975). Tito broke with Stalin in 1948 and ruled until his death in 1980.

Seven States from One (1991–2008)

Slovenia and Croatia declared independence on 25 June 1991. Slovenia's war lasted ten days; Croatia's lasted four years. By the end of 1991 Serb forces and the Yugoslav army held more than a quarter of Croatia, Vukovar had fallen after a three-month siege, and the Croatian Serbs had proclaimed the Republic of Serbian Krajina; a UN-brokered ceasefire froze the lines in January 1992. Macedonia voted to leave in September 1991 and Bosnia and Herzegovina declared independence on 3 March 1992, after which Serbia and Montenegro formed the Federal Republic of Yugoslavia.

Bosnia's war was the longest and deadliest. Bosnian Serb forces took most of the country in 1992 and besieged Sarajevo for almost four years; Bosnian Croat forces held western Herzegovina and pockets of central Bosnia as Herceg-Bosna, and fought the Bosnian government army in 1993–94 until the Washington Agreement of March 1994 joined them in a federation. Civilians were driven from whole regions by all sides, and about 100,000 people died. In July 1995 Bosnian Serb forces took the UN safe area of Srebrenica and killed more than 8,000 Bosniak men and boys, which international courts have ruled a genocide. In May and August 1995 the Croatian army took western Slavonia and the Krajina, and most of the Krajina's Serb population fled, as the Croats and other non-Serbs of those areas had been driven out in 1991. Croat and Bosniak offensives that autumn and NATO air strikes led to the Dayton Agreement, signed on 14 December 1995: one Bosnia and Herzegovina, two entities. Eastern Slavonia returned to Croatia peacefully under UN administration in January 1998.

Kosovo came last. After fighting between Serbian forces and the Kosovo Liberation Army in 1998–99 and a 78-day NATO bombing campaign, Yugoslav forces withdrew in June 1999 and the UN took over the province. Montenegro left the union with Serbia after a referendum in 2006, and Kosovo declared independence on 17 February 2008, which Serbia does not recognise. In 2019 Macedonia took the name North Macedonia.

How to Read the Map

The red layer is Serbia, and it changes colour with the state: red for the rebels and for independent Serbia, a lighter red for the autonomous principality, blue for both Yugoslavias, plum for the Federal Republic of 1992–2006, and grey while the country is occupied in the two world wars. Green is the Ottoman Empire, gold the Habsburg monarchy, purple Montenegro and teal Italy; in 1941 the occupiers each get their own colour. Watch the blue shades of Napoleon's Kingdom of Italy (1806) and Illyrian Provinces (1809–13) spread over the Habsburg west and pull back, the pale blue of Yugoslav-administered Istria between 1945 and 1954, and the khaki of the Allied zone around Gorizia and Pula until 1947.

From 1992 the map shows control on the ground. In Croatia the brown areas are Serb-held, the Krajina until August 1995 and eastern Slavonia until the UN took over (pale blue) in 1996. In Bosnia mauve is held by Bosnian Serb forces, orange by Bosnian Croat forces and yellow by the Bosnian government, in January 1993, May 1995 and August 1995; grey-green in May 1995 is Fikret Abdić's Autonomous Province of Western Bosnia around Velika Kladuša, a Bosniak-led breakaway allied with the Serbs and ended in August 1995. From Dayton the pale sand colour is Republika Srpska, an entity inside Bosnia and Herzegovina, not a separate state. Kosovo is pale blue under UN administration from 1999 and a stronger blue from 2008. Pins mark the main events from the Orašac assembly to Kosovo's declaration; small dots mark battles, the Jasenovac camp, the fall of Vukovar, Operation Storm and the Montenegrin referendum.

How the Map Was Made

Modern borders come from Natural Earth (1:10m) and geoBoundaries, and the historical borders are rebuilt from modern municipalities, so lines are accurate to about the nearest municipality. Border changes follow the treaties: Bucharest (1812 and 1913), Akkerman (1826), the hatt-i sharifs of 1830 and 1833, Berlin (1878), Pressburg (1805) and Schönbrunn (1809), Neuilly, Trianon and Rapallo (1919–20), Rome (1924), the Morgan Line (1945), the Paris peace treaty (1947) and the London Memorandum (1954). The front lines of 1992–95 were traced from public-domain CIA maps: Territorial Changes in Bosnia and Herzegovina Since January 1993 (May 1995), whose record of changes since January 1993 gives the earlier frame, and the Balkan Battlegrounds map of western Slavonia; the Dayton entity line and the Brčko District come from geoBoundaries.

Some things are simplified. The rebel extents of 1804–13 and the occupation zones of 1941 are approximate, and the Italian capitulation of 1943 and the Partisan-held areas are not shown. Areas held jointly by Croat and Bosniak forces in January 1993 are drawn with the government, and small front-line changes are left out. The republics and provinces inside socialist Yugoslavia are not drawn.

Chronological Timeline

• 1804 — First Serbian Uprising begins at Orašac
• 1813 — Ottomans crush the uprising
• 1815 — Second Serbian Uprising at Takovo
• 1830 — The Sultan recognises autonomous Serbia
• 1878 — Congress of Berlin: Serbia and Montenegro independent
• 1908 — Austria-Hungary annexes Bosnia and Herzegovina
• 1912–1913 — Balkan Wars: Serbia nearly doubles in size
• 1914 — Assassination in Sarajevo; First World War
• 1 December 1918 — Kingdom of Serbs, Croats and Slovenes
• 1941 — Axis invasion and partition
• 1945 — Federal People's Republic of Yugoslavia
• 1947 — Paris peace treaty: Istria, Rijeka and Zadar to Yugoslavia
• 1954 — London Memorandum: Zone B of Trieste to Yugoslavia
• 1991 — Slovenia and Croatia declare independence; war in Croatia
• 1992 — Bosnia and Herzegovina independent; war in Bosnia; Federal Republic of Yugoslavia
• 1995 — Srebrenica genocide; Operations Flash and Storm; Dayton Agreement
• 1998 — Eastern Slavonia returns to Croatia
• 1999 — NATO bombing; Kosovo under UN administration
• 2000 — Overthrow of Milošević; Brčko District
• 2006 — Montenegro independent
• 2008 — Kosovo declares independence
• 2019 — Macedonia renamed North Macedonia