The war Hostile_encounter between the government and Kīngitanga Māori spread Dispersal to other areas of the North Island , with the biggest single campaign Social_event being the invasion Attack of the Waikato in 1863–1864 , before hostilities concluded Process_end with the pursuits of Riwha Tītokowaru in Taranaki ( 1868–1869 ) and guerrilla fighter Te Kooti Arikirangi Te Turuki on the east coast ( 1868–1872 ) .