The seventh war became a war between the imperial British troops collaborating with the mixed-race "Burgher forces", which were mainly Khoi, Fengu, British settlers and Boer commandos, against the Ngcika assisted by the Ndlambe and Thembu. Tension had been simmering between colonialist farmers and Xhosa raiders, on both sides of the frontier since the dismantlement of Stockenstrom's treaty system. This began when Governor Maitland imposed a new system of treaties on the chiefs without consulting them, while a severe drought forced desperate Xhosa to engage in cattle raids across the frontier in order to survive. In addition, politician Robert Godlonton continued to use his newspaper the Graham's Town Journal to agitate for 1820 Settlers to annex and settle the land that had been returned to the Xhosa after the previous war. The war concluded after the announcement of the annexation of the country between the Keiskamma and the Kei rivers to the British crown by order of Lord Glenelg. It was not, however, incorporated with the Cape Colony, but made a crown dependency under the name of British Kaffraria Colony with King William's Town as its capital.