How a UNESCO World Heritage site became the target of a calculated military siege

History · Published 3 October 2026 Swipe more like this →

In short: In 1991, the Yugoslav People's Army launched a brutal campaign against Dubrovnik, a coastal city with no significant military defenses. The siege, driven by territorial ambitions and intense propaganda, saw the historic Old Town shelled and its citizens isolated, sparking international outrage and a lasting shift in the region's geopolitical landscape.

The siege of Dubrovnik began on 1 October 1991, as part of a broader strategy by the Yugoslav People's Army (JNA) to secure the southern coast of Croatia. By isolating the city from the rest of the country, the JNA aimed to integrate the region into a Serb-dominated state. This plan included the failed proclamation of a 'Dubrovnik Republic' in November 1991. The offensive was fueled by significant propaganda, with Montenegrin officials and JNA commanders claiming, without evidence, that thousands of Croatian troops and mercenaries were preparing to invade Montenegro.

Defending the city was a daunting task. At the start of the conflict, Dubrovnik had only about 480 poorly armed troops, as the local Territorial Defence had been disarmed years earlier. The city lacked substantial military infrastructure, having no JNA garrisons since 1972. Despite these odds, the city survived through the resilience of its citizens and the arrival of the Libertas convoy, a fleet of civilian vessels that broke the naval blockade to deliver essential supplies and evacuate thousands of refugees.

The situation reached a breaking point on 6 December 1991, when the JNA unleashed its heaviest bombardment on the Old Town. This attack, which killed 13 civilians and destroyed irreplaceable cultural heritage, drew immediate condemnation from UNESCO and the international community. The resulting public relations disaster for Serbia and Montenegro contributed to their diplomatic isolation. By May 1992, the JNA retreated into Bosnia and Herzegovina, transferring its military assets to the newly established Army of Republika Srpska, while Croatian forces gradually reclaimed the surrounding territory.

The human cost of the siege was high, with 194 Croatian military personnel and up to 88 civilians killed. Over 11,000 buildings sustained damage, and thousands of residents were displaced. Years later, the International Criminal Tribunal for the former Yugoslavia held several officers accountable for the campaign. Today, the siege remains a stark example of how historical centers can be weaponized in modern conflicts and the profound impact of international intervention in protecting cultural heritage.

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