1845-03-11 The Flagstaff War: In New Zealand, Chiefs Hone Heke and Kawiti lead 700 Māoris to chop down the British flagpole and drive settlers out of the British colonial settlement of Kororareka because of breaches of the 1840 Treaty of Waitangi.
- 1860-03-28 First Taranaki War: The Battle of Waireka begins in New Zealand
- 1860-08-03 The Second Maori War begins in New Zealand
- 1861-03-19 The First Taranaki War ends in New Zealand
- 1863-07-17 Māori forces are defeated by British troops at Koheroa, Waikato, in the New Zealand Wars between Maori tribes and British colonials
- 1863-10-31 The Maori Wars resumed as British forces in New Zealand led by General Duncan Cameron began their Invasion of the Waikato
- 1864-01-21 The Tauranga Campaign of the New Zealand Wars begins
1864-04-29 Battle of Gate Pa (Pukehinahina): 1,700 British troops suffer their worst defeat of the New Zealand Wars at the hands of 230 entrenched Maori warriors in Tauranga