In September 1993, when Croatia started Operation Medak Pocket, Hadžić sent an urgent request to Belgrade for reinforcements, arms and equipment. The request was ignored by the Serbian officials, although some 4,000 paramilitaries under the command of Arkan (Serb Volunteer Guard), arrived, to bolster the RSK army. In February 1994, Hadžić's presidency ended when Milan Martić was elected president. In 1995, he threatened to have the eastern Slavonian district secede from Krajina because of plans to unite Krajina with Republika Srpska.