 U.S. officials made no response to the proposal.Operation Winter '94 was ordered the same day; it was to be carried out by the HV and the HVOthe main military forces of the Bosnian Croats.Operation Winter '94 became feasible after the HVO captured Kupres (north of the Livanjsko field) in Operation Cincar on 3 November 1994, securing the right flank of the planned advance northwest of Livno.