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Historical ConflictSarajevo

Siege of Sarajevo

At 1,425 days, the Siege of Sarajevo was the longest siege of a capital city in modern warfare, resulting in nearly 14,000 deaths.

Duration & Scope

1992 1996

4 years

Estimated Total Casualties

14K

Key Facts

Duration
1,425 days (5 Apr 1992 – 29 Feb 1996)
Total killed
13,952 (including 5,434 civilians)
Besieging force
~13,000 troops in surrounding hills
Defending force
~70,000 ARBiH troops (no heavy weapons)
Bombs dropped on city
At least 500,000
Pre-siege population
~435,000 (city proper)

Strategic Narrative Overview

From April 1992, the Army of Republika Srpska positioned 13,000 troops in the hills surrounding Sarajevo, subjecting it to sustained artillery bombardment, sniper fire, and blockades of utilities. ARBiH defenders numbering around 70,000 held the urban core without armour or heavy weapons. The city endured periods of up to six months without gas, electricity, or water. UN peacekeepers monitored but could not end the siege, and multiple ceasefires collapsed before NATO air strikes in 1995 shifted the military balance.

01 / The Origins

When Bosnia and Herzegovina declared independence following the 1992 referendum, Bosnian Serb leaders sought to carve out a contiguous Republika Srpska that included Bosniak-majority territories. Sarajevo, the multi-ethnic capital, became a primary target. Bosnian Serb forces, initially drawing on Yugoslav People's Army assets, encircled the city to apply political and military pressure, aiming to force capitulation or partition of the newly recognised state.

03 / The Outcome

The siege was lifted following the Dayton Agreement signed on 14 December 1995, with the ceasefire formally ending on 29 February 1996. Post-war, the ICTY convicted four Serb officials for crimes against humanity and terrorism. Generals Stanislav Galić and Dragomir Milošević received life and 29-year sentences respectively; political leaders Radovan Karadžić and Ratko Mladić were also sentenced to life imprisonment. Sarajevo's population fell from roughly 435,000 before the siege to between 300,000 and 380,000 after.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Army of Republika Srpska
Peak Mobilized Forces~13K
Estimated Casualties~2K
Casualty Rate17.2%
Forces vs Casualties ratio
0CasualtiesMobilized
Key Commanders

Ratko Mladić, Stanislav Galić, Dragomir Milošević, Radovan Karadžić.

Side B

1 belligerent

Army of the Republic of Bosnia and Herzegovina (ARBiH)
Peak Mobilized Forces~70K
Estimated Casualties~6K
Casualty Rate8.8%
Forces vs Casualties ratio
0CasualtiesMobilized
Total Casualties (all sides)
13,952
Outcome
Siege lifted after Dayton Agreement (Dec 1995); Bosnian Serb commanders convicted of war crimes by ICTY

Location

Map of Sarajevo, Bosnia and HerzegovinaMap of Sarajevo, Bosnia and HerzegovinaSarajevo, Bosnia and Herzegovina