The Danes came up with the operation name “Bøllebank” and camp name “Gønge” because the Swedes had a hard time pronounce the letter Ø.
Operation Bøllebank (English: Operation Hooligan Bashing) was the first combat operation conducted by Danish Armed Forces since World War II. In April 1994, a Danish contingent with elements of the Jydske Dragonregiment on peacekeeping duty in Bosnia, as part of UNPROFORs Nordic battalion (Nordbat 2) located in Tuzla, was ambushed, when trying to relieve a Swedish and Norwegian observation post, Tango 2, that was under heavy artillery fire by the Bosnian Serb Šekovići brigade at the village of Kalesija, but the ambush was dispersed when the UN forces retaliated with heavy fire.
The ambush started with shelling near Saraci, 8 km southeast from Tuzla, which was ignored. The column, however, came under attack by anti-tank missiles when they reached the village of Kalesija, further east. The UNPROFOR column requested air support, which was rejected. Due to restrictive rules of engagement imposed by the United Nations, Lt. Colonel Lars R. Møller was hesitant, but he decided to return fire. The attack on them ceased after this, but intensified again later, provoking an even stronger response.
The seven German-made Leopard 1A5 tanks fired 72 rounds and destroyed several Serb artillery pieces, an ammunition dump and several bunkers. Serb forces brought three T-55 tanks to the scene, but apparently the Danes did not engage them, as they made no offensive moves. The Leopards, however, fired 19 armour-piercing rounds. The Danes could see in their thermal tank sights that the guns on the T-55s were cold and therefore had not taken part in the engagement according to a non-official report. However, an Italian source claimed that, despite the UNPROFOR rules of engagement, the three T-55s were hit by the Leopards.
This episode received national as well as international attention since it was the first time the UN forces in the Balkans (and generally) had used such massive firepower as a response to attacks on its forces. Simultaneously, it was the first time in modern history that the Danish military had participated in something which could only be accurately described as wartime fighting.
Read more about Operation Bøllebank here: