The 99th remained in Tasmania for three years before being dispatched to New Zealand to take part in the New Zealand Wars. Detachments of the 99th took part in the Hutt Valley Campaign, seeing action at the Battle of Battle Hill. three government soldiers and at least nine Ngāti Toa were killed. Following the capture of Te Rauparaha in 1846, the Regiment would depart New Zealand and return to Australia, although detachments would be sent as needed to reinforce the British forces in New Zealand for the next few years to keep the peace. For its service in the First Maori War, the regiment earned its first battle honour: New Zealand.