For 10 points, name this brilliant tactician who united his people and founded the Zulu Kingdom in the early nineteenth century.
Nathaniel Isaacs wrote an account of this ruler, who established his capital at Bulawayo. This ruler invented the Iklwa, a shorter version of the assegai, and he defeated Zwide at the Battle of Gqokli Hill by using his "buffalo horns" formation. This man ordered the milk in his empire to be drained away after the death of his mother Nandi; after Nandi's death, this ruler massacred over 7,000 of his own subjects which led his brother Dingane to assassinate him. Earlier he had united the Mthethwa and Ndwandwe peoples after succeeding Dingiswayo. For 10 points, name this brilliant tactician who united his people and founded the Zulu Kingdom in the early nineteenth century.
Nathaniel Isaacs wrote an account of this ruler, who established his capital at Bulawayo.
 Shaka Zulu 