Sarajevo Tunnel

The Sarajevo Tunnel (Bosnian: Sarajevski Tunel) also known as the Tunnel of Salvation (Bosnian: Tunel spasa), the Tunnel of Hope, or the Tunnel of Life, was a tunnel constructed between March and June 1993 during the Siege of Sarajevo in the midst of the Bosnian War. It was built by the Army of the Republic of Bosnia and Herzegovina (ARBiH) in order to link the city of Sarajevo, which was entirely cut off by the Army of Republika Srpska (VRS), with ARBiH-held territory on the other side of the Sarajevo Airport, an area controlled by the United Nations. The tunnel linked the Sarajevo neighbourhoods of Dobrinja and Butmir (giving it the name "Tunnel D-B"), allowing food, war supplies, and humanitarian aid to come into the city, and allowing people to get out. The tunnel became a major way of bypassing the international arms embargo and providing the city defenders with weaponry.

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).