Which Zulu leader is credited with developing the "buffalo horns" formation, a tactical maneuver used to surround and crush enemy forces?

Shaka Zulu

Shaka transformed the Zulu Kingdom into a major regional power through military innovations like the short stabbing spear known as the iklwa. His tactics were later used by Zulu forces to defeat the British at the Battle of Isandlwana in 1879.