Colonial Warfare in Africa: Isandlwana & Rorke's Drift (1879)

Military History: The British Empire

Chapter 6 · Colonial Warfare in Africa: Isandlwana & Rorke's Drift (1879)

By the 1870s the British Army expected to win its colonial wars easily. Breech-loading rifles, artillery, and discipline were supposed to beat any African army, however large. On a single day in January 1879 in Zululand, that assumption was shattered — and, a few miles away, a tiny garrison produced the most famous defensive stand in British military history.

A War Nobody in London Asked For

Sir Henry Bartle Frere, Britain's High Commissioner in southern Africa, wanted to join the region's colonies and states into a single confederation under British control. The independent Zulu kingdom, with its large and well-organised army, stood in the way.

The Ultimatum of 11 December 1878

Frere sent King Cetshwayo an ultimatum that included disbanding the Zulu army system altogether — terms he knew no Zulu king could accept. The government in London had not wanted a war, but communication was slow and Frere acted largely on his own initiative. When the deadline passed, Lord Chelmsford led British forces across the border in January 1879.

The Zulu Army

Organised into age-based regiments (amabutho), armed mainly with the short stabbing spear and cowhide shields, plus some older firearms. Highly mobile on foot and very disciplined.

The "Horns of the Buffalo"

The standard Zulu tactic: the "chest" attacked head-on to pin the enemy while two "horns" swept round both flanks to encircle it, with the "loins" held in reserve behind.

The British Army

Regular infantry with the Martini-Henry breech-loading rifle, artillery, and colonial and African auxiliary units. Chelmsford invaded in several separate columns.

Isandlwana: 22 January 1879

Chelmsford's main column camped below the hill of Isandlwana. Believing the Zulu army was elsewhere, he split his force before dawn and led around 2,800 men out to search for it. He left roughly 1,300 men in the camp under Lieutenant-Colonel Henry Pulleine; Colonel Anthony Durnford later arrived with more troops.

	British camp	Zulu army
Force	About 1,800 British, colonial, and African troops	About 20,000–25,000 warriors
Killed	More than 1,300, including 52 officers and about 690 regular soldiers	Estimates range from about 1,000 to 3,000

The main Zulu army had in fact been hiding in a valley nearby. Discovered by a British patrol, it attacked in the "horns" formation. The British firing line was spread out far from the camp, and the camp itself had no defensive barricade (a laager of wagons) or entrenchment. As the horns closed round both flanks, the line fell back and was overwhelmed. Around the time the fighting ended, a partial solar eclipse darkened the sky.

The Ammunition Box Story A long-popular explanation is that the British ran out of ammunition because the boxes were screwed shut and quartermasters refused to hand them out. Many modern historians think this is overstated: the more important problems were an over-extended firing line, flanks that couldn't be protected, and the sheer size and speed of the Zulu attack. Ammunition supply to the far-flung firing line may have played a part, but it's no longer seen as the single cause.

Why It Shocked Britain It was one of the worst defeats the British Army ever suffered against an enemy with far less advanced weapons. The lesson wasn't that rifles didn't work — it was that splitting a force in unknown country, underestimating the enemy, and failing to fortify a camp could cancel out any technological edge.

Rorke's Drift: 22–23 January 1879

A few miles away, a mission station at a river crossing served as a supply depot and hospital. When survivors brought news of Isandlwana, the roughly 150 men there chose to stay and fight rather than retreat across open country where they would certainly be caught.

The Defence

Lieutenant John Chard of the Royal Engineers and Lieutenant Gonville Bromhead of the 24th Regiment, with key advice from Acting Assistant Commissary James Dalton, built barricades from mealie (maize) bags, biscuit boxes, and crates of tinned meat. They also built an inner wall across the middle of the post so they could fall back to a smaller perimeter. Around 3,000–4,000 Zulu warriors under Prince Dabulamanzi — reserve regiments that hadn't fought at Isandlwana — attacked from late afternoon through the night.

The Hospital

The hospital building, on the edge of the perimeter, was set on fire. Soldiers including Privates John Williams and Alfred Henry Hook held off attackers room by room while hacking through interior walls to drag patients out to the inner defences.

	Garrison	Zulu force
Force	About 150	About 3,000–4,000
Killed	17	About 350 counted dead, possibly 500 or more including wounded who died
Awards	11 Victoria Crosses — the most ever awarded for a single action

A Real Stand, and Also a Useful One The defence was genuinely remarkable. But some historians argue the unusually generous medals were partly a way to give the public a heroic story to set against the disaster of Isandlwana on the same day. There are also credible reports that wounded Zulu left on the field afterward were killed by British troops. Both points sit alongside the courage of the defenders; neither cancels it.

How the War Ended

Early 1879 Heavy reinforcements are sent from Britain for a second, more cautious invasion.
1 June 1879 The Prince Imperial, heir of France's exiled Napoleon III and serving with the British as an observer, is killed in a Zulu ambush — a scandal in both countries.
4 July 1879 Battle of Ulundi: about 5,000 British and African troops in a hollow square, with artillery and two Gatling guns, face 12,000–15,000 Zulu. The charge breaks against the square; British dead number under 20, Zulu casualties around 1,500. The royal kraal is burned.
28 August 1879 Cetshwayo is captured and exiled. Zululand is divided into 13 chiefdoms under chiefs chosen by the British — a settlement that led to years of civil war.

Ulundi Is the Real Lesson of Isandlwana At Ulundi the British did everything they hadn't done in January: they kept their force together, formed a closed square with no open flanks, and let firepower do the work. The same weapons that failed at Isandlwana won decisively. The difference was how they were used — a theme that returns sharply in the Boer Wars (Chapter 7), where the enemy didn't charge at all.

Questions to Sit With

Isandlwana and Rorke's Drift happened on the same day, a few miles apart. Why do you think Rorke's Drift became so much more famous in Britain?

If the war was started largely by one official acting without London's approval, who should carry responsibility for Isandlwana?

The same rifles lost at Isandlwana and won at Ulundi. What does that suggest about how much weapons alone decide a battle?

Quick Reference — Chapter 6

The Anglo-Zulu War was provoked by Bartle Frere's ultimatum to Cetshwayo (11 December 1878), largely without London's approval
Zulu tactics: the "horns of the buffalo" — chest pins the enemy, horns encircle, loins in reserve
Isandlwana, 22 January 1879: Chelmsford split his force; the unfortified camp of about 1,800 was overrun by 20,000–25,000 Zulu, with more than 1,300 killed
The "screwed-down ammunition boxes" explanation is now widely seen as overstated; the extended line and turned flanks mattered more
Rorke's Drift, 22–23 January: about 150 men under Chard and Bromhead held off 3,000–4,000 Zulu from mealie-bag barricades; 17 killed; 11 Victoria Crosses
Ulundi, 4 July 1879: a British hollow square broke the Zulu army; Cetshwayo was captured in August and Zululand split into 13 chiefdoms

What's Next

Chapter 7: The Boer Wars: Real Guerrilla Warfare & the Birth of Modern Counter-Insurgency.