The siege of Mostar was fought during the Bosnian War first in 1992 and then again later in 1993 to 1994. Initially lasting between April 1992 and June 1992, it involved the Croatian Defence Council (HVO) and the Army of the Republic of Bosnia and Herzegovina (ARBiH) fighting against the Serb-dominated Yugoslav People's Army (JNA) after Bosnia and Herzegovina declared its independence from Yugoslavia. That phase ended in June 1992 after the success of Operation Jackal, launched by the Croatian Army (HV) and HVO. As a result of the first siege around 90,000 residents of Mostar fled and numerous religious buildings, cultural institutions, and bridges were damaged or destroyed.
As the wider conflict matured and the political landscape changed, the Bosnian Croats and Bosniaks began to fight against each other, culminating in the Croat–Bosniak War. Between June 1993 and April 1994 the HVO besieged Bosniak-concentrated East Mostar, resulting in the deaths of numerous civilians, a cut off of humanitarian aid, damage or destruction of ten mosques, and the blowing up of the historic Stari Most bridge. Hostilities ended with the signing of the Washington Agreement in March 1994 and the establishment of the Croat–Bosniak federation.
