DID YOU KNOW: The shortest war in history lasted 38 minutes

Maxime Marquette

2026-06-24 13:08:56

A Strategic Archipelago Between Two Worlds

Zanzibar is an archipelago inthe Indian Ocean, located a few kilometers off the coast of present-day Tanzania. In the 19th century, it was a major commercial hub: the spice trade (cloves in particular), sandalwood, and—although officially abolished in 1873 under British pressure—persistent networks linked to slavery. The island was ruled by an Arab-Omani sultanate whose successive sultans maintained relations with the British that oscillated between willing vassalage and constant friction.

Great Britain had imposed a protectorate treaty in 1890, which gave it de facto control over the island’s domestic and foreign policy. In short, the British wanted the sultan of Zanzibar to be chosen from among pro-British candidates who were cooperative on the issue of abolishing slavery and accommodating on trade matters. This demand would trigger, on August 25, 1896, the start of the shortest crisis in colonial history.

The Death of the Good Sultan and the Arrival of the Bad One

On August 25, 1896, Sultan Hamad ibn Thuwaini —considered pro-British and cooperative—died suddenly under circumstances that remained unclear (poisoned, some sources whisper, though no evidence has been established). No sooner had he died than his cousin Khalid ibn Barghash seized the palace with some 2,800 armed men and proclaimed himself sultan. However, Khalid ibn Barghash was not the British’s preferred candidate. He was seen as a separatist, potentially hostile to the British presence, and, according to diplomatic sources of the time, harboring ambitions to rely onGermany —which had a presence in the region—to counterbalance British dominance.

British Consul Basil Cave, acting on behalf of Consul General Arthur Hardinge, issued a clear ultimatum to Khalid: evacuate the palace by 9:00 a.m. on August 27, or face military consequences. Meanwhile, the Royal Navy was taking up positions in the port of Zanzibar: Rear Admiral Harry Rawson commanded five warships—HMS St. George, HMS Racoon, HMS Philomel, HMS Thrush, and HMS Sparrow —whose guns were trained on the palace.

There is something chilling about this image: five British cruisers lined up in the harbor of an island in the Indian Ocean, waiting for 9 a.m. as one might wait for an office to open. Imperialism had its procedures.

The morning of August 27, 1896: 38 minutes that changed everything

9:02 a.m.: The cannons open fire

At 9:02 a.m., with the ultimatum having expired without a satisfactory response from Khalid, the Royal Navy opens fire on the sultan’s palace. The guns of the British cruisers pound the main building, the adjoining fortified house, and the small, armed royal yacht Glasgow that Khalid had mobilized—a pathetic symbol in the face of the British battleships. Within minutes, the Glasgow is sunk. The wooden cannons mounted on the palace roof were destroyed. The building caught fire.

Khalid had about 2,800 defenders, some of whom were regular soldiers and others hastily armed partisans. Facing them, the British deployed the firepower of five modern ships, equipped with naval artillery of sufficient caliber to demolish the island’s fortifications in a few salvos. The disparity in forces was such that the outcome was not a matter of tactics but of time—and that time was very short.

9:40 a.m.: The flag falls, the war ends

At 9:40 a.m.— 38 minutes after the first shots were fired—the flag over the Zanzibari palace came down. Khalid ibn Barghash had fled under cover of the fighting and taken refuge in the city’s German consulate, which granted him temporary asylum. He remained there for several years before finally being arrested by the British during World War I, following the capture of the German colony in East Africa. He died in exile in Mombasa in 1927.

The human toll was heavy on one side only: approximately 500 dead and wounded among Khalid’s defenders. On the British side, there was only one sailor who was seriously wounded. The new sultan appointed by the British— Hamud ibn Mohammed —took power that same day and immediately accepted all British conditions, notably the strengthening of measures against slavery. The Encyclopædia Britannica notes that he had the slave trees in the Zanzibar market cut down and freed the last slaves registered under the previous reign.

500 dead in 38 minutes. All for a sultanate that simply wanted to choose its own leader. The efficiency of the imperial force is breathtaking—not admiration, but sheer astonishment at the utter disproportion.

Why does the duration vary depending on the source?

38, 40, or 45 minutes: The Mystery of War Timekeeping

According to the English-language Wikipedia, Britannica, and most reputable sources, the officially recognized duration is 38 minutes —although figures of 40 and 45 minutes circulate depending on the source. This variation is not an error or a dispute over details: it reflects a genuine historiographical question. When does a war begin? When does it end?

Some historians place the start at 9:00 a.m. (the expiration of the ultimatum) rather than at 9:02 a.m. (the first actual shots fired). As for the end, some count until the last shot was fired (9:40 a.m.), while others count until the official surrender (9:45 a.m., according to some logbooks). These marginal variations—ranging from two to seven minutes—explain the differences among sources. The consensus holds that 38 minutes is the standard duration, from the first shots fired to the lowering of the flag.

A war, or a bombardment?

Some historians, moreover, qualify the very use of the term “war.” A 38-minute conflict consisting essentially of a unilateral naval bombardment followed by a retreat resembles more a punitive operation or a show of force than a war in the traditional sense of the term—two armies on a battlefield, maneuvers, counterattacks, and negotiations. But the official use of military force by two sovereign states, with a de facto declaration of hostilities and a formal surrender, meets all the legal criteria for an armed conflict. Historians and Guinness World Records agree: it was indeed a war.

It is also interesting to note that Khalid ibn Barghash, who had rejected the ultimatum, had not really expected the British to open fire. His defenders were not prepared for a naval assault of such intensity. He may have thought—or hoped—that the bluff would work. That calculation proved catastrophically wrong in less than an hour.

The lesson of Zanzibar is that an ultimatum issued by an imperial power with five warships in the harbor is not exactly an invitation to negotiate. Khalid learned this lesson at the cost of 500 of his men.

Zanzibar After the War: The Island's Fate

Half a Century of British Protectorate Rule

The war of 1896 permanently consolidated British control over Zanzibar. The island remained a protectorate until 1963, when it formally gained independence as a member of the Commonwealth. But independence lasted only a year: in 1964, a Zanzibari revolution overthrew the sultanate, resulting in the deaths of several thousand people, mainly among the Arab population. In the months that followed, Zanzibar merged with mainland Tanganyika to form Tanzania, the nation that exists today.

This long history—from sultanate rule to British colonization, independence, revolution, and union—lends a tragic depth to those 38 minutes from 1896. The shortest war in history is part of a century and a half of upheaval for an island that has never truly known peace.

The Legacy: Abolition of Slavery and a Mark on African History

We mostly remember the 38 minutes and the 500 deaths. But the war had at least one concrete and positive effect: it accelerated the formal end of slavery in Zanzibar. Sultan Hamud ibn Mohammed, installed by the British, put an end to the slave markets and officially freed the last slaves legally held under the sultanate—a decision that his defiant predecessor, Khalid, likely would not have made so quickly. The abominable slave market in Stone Town, once the largest in East Africa, closed for good. An Anglican cathedral was built on its ruins—a deliberate Victorian symbol.

Today, Stone Town is a UNESCO World Heritage Site, and the memory of the world’s shortest war draws curious visitors and historians to this clove-scented island, whose history is as rich and complex as its spice markets.

38 minutes. The length of a meeting, a hurried meal, a train ride. And yet, the lives of more than 500 people came to an end that morning. History remembers the record. It should also remember this.

Conclusion: What This War Reveals About Colonial History

A Reflection of Victorian Imperialism

The Anglo-Zanzibari War of 1896 is a history lesson condensed to the extreme. It shows us how the British imperial system operated at its peak: unilaterally imposed rules of the game, total oversight of local rulers, ultimatums followed by decisive action, and military superiority so overwhelming that any resistance was doomed from the start. It wasn’t a war—it was a demonstration.

It also reminds us that much of world history has unfolded in places that our Western textbooks almost entirely ignore. At the end of the 19th century, Zanzibar was a center of commerce, culture, and politics whose fate was played out among the world’s great powers. The fact that its most famous war lasted 38 minutes should not obscure the centuries of complexity that preceded and followed it.

A Record That’s No Laughing Matter

It’s tempting to treat the 38-minute war as a comical curiosity—a trivia question, a dinner-party anecdote. And in a sense, it is. But behind the number lies a brutal human reality: an island, a people, armed men facing battleships, and a morning in August 1896 that ended in bloodshed before the sun was high in the sky. Historical records deserve to be known. They also deserve to be understood.

By Maxime Marquette, columnist