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.