After the secessionist Serb Republic of Serbian Krajina was proclaimed in 1991 on the west, the inhabitants of Bihać were prevented from crossing into that territory. Additionally, after Bosnian Serbs proclaimed the Republika Srpska in 1992 on the east, the communities of Bihać, Bosanska Krupa, Cazin and Velika Kladuša found themselves surrounded on both sides. The two Serbian armies cooperated in order to capture the Bosniak pocket in the middle of them.