The HGZ took part in several battles of the Croatian War of Independence and the Bosnian War. In late November and December 1994, it participated in Operation Winter '94, the joint offensive of the HV and the Croatian Defence Council ("Hrvatsko vijeće obrane" – HVO) which pushed the Army of Republika Srpska ("Vojska Republike Srpske" – VRS) from the western parts of the Livanjsko field in Bosnia and Herzegovina. Elements of the HGZ also saw action along the Novska–Okučani axis of advance in the HV's Operation Flash offensive that took place in western Slavonia in early May 1995. By this time, the HGZ also commanded its own artillery and Mil Mi-24 helicopter gunships, in addition to Mil Mi-8 transport helicopters. The HGZ redeployed west of Livno once again in early June to take part in Operation Leap 2, extending the salient that had been created in late 1994 west towards Bosansko Grahovo and Glamoč. The unit participated in the capture of those towns in late July 1995 during Operation Summer '95.