The first military effort coordinated between the HVO and the ARBiH following the Washington Agreement was the advance towards Kupres, which was retaken from the VRS on 3 November 1994. On 29 November, the HV and the HVO initiated Operation Winter '94 in southwestern Bosnia. After a month of fighting, Croat forces had taken around of VRS-held territory and directly threatened the main supply route between Republika Srpska and Knin, the capital of Republic of Serbian Krajina. The primary objective of relieving pressure on the Bihać pocket was not achieved, although the ARBiH repelled VRS attacks on the enclave.