The Machine Gun and the Assegai
When Mzilikazi arrived at a place they named Gubulawayo (or the place of slaughter) he had several thousand young Ndebele men with him, the remnants of an Impi (regiment) that he had led in a campaign on the highveld of what is now called the Transvaal. The date was the early 1830's.
Highly organised as a military unit, the Ndebele quickly subdued the local tribes, eliminating those who would not be subjugated and turning the others into vassals. They then turned their attention to the region and in the ensuing decades up to 1890, they terrorized the people to the north and east of where they had settled. Queen Victoria was obliged to establish two protectorates - one in the area now called Zambia and the other in what has become known as Botswana to limit the impact of these raiding parties on those communities.
In 1893, the white settlers who had arrived in dribs and drabs over the previous decade found that establishing their mining and farming ventures was nearly impossible with the annual raids by the Ndebele looking for bounty, women and cattle. They issued a dictum that the Ndebele forces were not to cross the Shangani River and thereby cut off the mainstay of the Ndebele economy which was the raiding parties of young Ndebele men armed with the classical assegai.
The King of the Ndebele, Lobengula could not accept this threat and immediately dispatched some 30 000 men to the Shangani. The settlers responded with two small columns from Fort Salisbury and Fort Victoria. The settlers were armed with Gatling guns and search lights for night operations; the Ndebele did not have a chance. They crossed the river and in the ensuing battle, 3000 men lost their lives in return for a handful of the settler column. The Ndebele returned to their Capital only to see it destroyed by the King who then fled towards the Zambezi to eventually die by his own hand.
The lesson, superior weapons always win.