The Tauranga campaign was a six-month-long armed conflict in New Zealand's Bay of Plenty in early 1864, and part of the New Zealand Wars that were fought over issues of land ownership and sovereignty. The campaign was a sequel to the invasion of Waikato, which aimed to crush the Māori King (Kingitanga) Movement that was viewed by the colonial government as a challenge to the supremacy of the British monarchy. British forces suffered a humiliating defeat in the Battle of Gate Pā on 29 April 1864, with 31 killed and 80 wounded despite outnumbering their Māori foe, but saved face seven weeks later by routing their enemy at the Battle of Te Ranga, in which more than 100 Māori were killed or fatally wounded, including their commander, Rawiri Puhirake. Background In late January 1864 British commander General Duncan Cameron—at the time still facing the intimidating Paterangi line of Māori defences in the Waikato campaign—despatched by sea an expedition to occupy Tauranga, through which he believed his enemy were transporting men and supplies from the East Coast. The local Ngāi Te Rangi Māori were hostile to the government, a major gunpowder store was known to be inland of Tauranga and the district was an important source of food for Māori fighting British forces in the Waikato. While Colonel Henry Greer was landed with his force at Te Papa, where they built two redoubts, Captain Robert Jenkins, commander of HMS Miranda, was ordered to blockade the harbour to prevent the arrival of more Māori reinforcements. Though Cameron's strategy gained the enthusiastic support of Premier Frederick Whitaker and his cabinet, who were keen to use the 1863 confiscations legislation to open fresh territory for European settlement, Governor George Grey was opposed, fearing it would raise rebellion in more Māori tribes, including those that had thus far refrained from supporting the Kingitanga movement. Grey withdrew his initial assent for Whitaker's orders to take an aggressive stance and instead directed the Tauranga expedition's commander, Brigadier George Carey, to remain strictly on the defensive, apart from intercepting armed bands en route to the Waikato. Alerted to their arrival, Ngāi Te Rangi warriors returned from the Waikato battlefields and built a hilltop fort, or pā, on high ground at Te Waoku near the Waimapu Stream overlooking the Bay of Plenty, where they established a garrison of about 100 men. Ngāi Te Rangi chief Rawiri Puhirake taunted Carey