The Zulu Kingdom is the only native country in mainland Southern Africa in Victoria 2. They are also the only uncivilised nation in the region (aside from Madagascar).
The Zulu have a significant advantage over the neighbouring Boer states in its starting army: The Impi of the Zulu. The Impi number 27,000, and although made up of irregulars, can overrun Boer armies.
The first action of the Zulu should be to conquer Transvaal. As the larger of the Boer states, and having the precious metal mines that will pop up in Klerksdorp. The Boers of Transvaal can be conquered very easily, and give more resources and population than Orange. Note that taking either of these states will improve the Zulus' literacy, from 1% to 5%. Literacy is important to ensure that the Zulu don't fall behind in technology too much.
Madagascar should be conquered before the French get it in their sphere, to add more strength to the Zulu, but avoid going over the infamy limit, so that the British don't attack. Keep relations with the UK high, and only attack if they get involved in a large war with European nations like France or Russia. Even then, make sure you save before declaring war. If the Zulu get the right technologies, they can colonize much of Africa, especially if Britain is pushed out of the picture.
As with all uncivilised nations, Westernisation is a major priority so that the Zulu can build factories and exploit their resources. Cement, Steel and Liquor factories suit the Zulus' resources well.
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