The Lado Enclave (French: Enclave de Lado; Dutch: Lado-Enclave) was a leased territory administered by the Congo Free State and later by the Belgian Congo that existed from 1894 until 1910, situated on the west bank of the Upper Nile in what is now South Sudan and northwest Uganda. Its capital was the town of Lado.

Traditionally the home of the Lugbara, Kakwa, Bari, and Moru peoples, the area became part of the Ottoman-Egyptian province of Equatoria, and was first visited by Europeans in 1841/42, becoming an ivory and slave trading centre. Lado, as part of the Bahr-el-Ghazal, came under the control of the Khedivate of Egypt and in 1869 Sir Samuel Baker created an administration in the area, based in Gondokoro, suppressed the slave trade and opened up the area to commerce.

Charles George Gordon succeeded Baker as Governor of Equatoria in 1874 and noting the unhealthy climate of Gondokoro, moved the administrative centre downstream to a spot he called Lado, laying the town out in the pattern of an Indian cantonment, with short, wide and straight streets, and shady trees. Gordon made the development of primary industry in Lado a priority, with the start of commercial farming of cotton, sesame and durra and the introduction of livestock farming. Although Gordon stationed over three hundred soldiers throughout the region his efforts to consolidate Egyptian control over the area were unsuccessful and when he resigned as governor in 1876, only Lado and the few garrison settlements along the Nile could be considered administered.

Emin Pasha was appointed as governor to replace Gordon and began to build up the region's defences and developed Lado into a modern town, founding a mosque, Koranic school and a hospital, so by 1881 Lado boasted a population of over 5000 tokuls (round mud huts common to the region).

Russian explorer Wilhelm Junker arrived in the Lado area in 1884, fleeing the Mahdist uprising in the Sudan, and made it his base for his further explorations of the region. Junker wrote complimentarily of Lado town, in particular its brick buildings and neat streets.

During the Mahdist rule of the region, Lado was allowed to fall into disuse but Rejaf was made into a penal settlement.

British desire for a Cape to Cairo railway led them to negotiate with the Congo Free State to exchange the area that became known as the Lado Enclave for a narrow strip of territory in eastern Congo between Lakes Albert and Tanganyika. These negotiations resulted in the 1894 British-Congolese Treaty, signed on 12 May, under which the British leased all of the Nile basin south of the 10° north latitude to King Leopold II of the Belgians, sovereign of the Congo Free State, for the period of his lifetime. This area, called the Lado Enclave, linked the Congo with the navigable Nile.

The treaty also dictated that the whole of the Bahr-el-Ghazal (with the exception of the Lado Enclave) be ceded to the Congo State during the lifetime of King Leopold "and his successors". The British knew that the Congo Free State would be unable to occupy Lado "for some time".

French concern about Leopold's aspirations in Africa led to the 1894 Franco-Congolese Treaty, signed on 14 August, in which Leopold was forced to renounce all right to occupy north of the 5° 30" north latitude in exchange for French acceptance of Leopold's ownership of Lado. However, it was not until 1896 that Leopold had the resources to assemble an expedition to the enclave; "an expedition which was without doubt the greatest that nineteenth century Africa had ever seen", under Baron Dhanis. The official plan was to occupy the enclave, but the ultimate aim was to use Lado as a springboard to capturing Khartoum to the north and control a strip of Africa from the Atlantic to the Indian Ocean. Dhanis' expedition mutinied in 1897.

Later in 1897, troops of the Congo Free State under Louis Napoléon Chaltin attempted to physically take control of the enclave. Chaltin's forces reached the Nile at the town of Bedden in the enclave in February 1897 and defeated the Mahdists in the Battle of Rejaf. This consolidated Léopold's claim to the Upper Nile, but although he had instructed Chaltin to continue on towards Khartoum, Chaltin did not have the forces to do so, and instead chose to heavily fortify Lado (which had ceased to exist under the Mahdists), Rejaf, Kiro, Loka, and Yei, and occupied Dufile.

By 1899, the British Government was claiming that the Congo State had not fulfilled its obligations of the Anglo-Congolese Treaty and therefore had no right to claim the Bahr-el-Ghazal. At the same time the convention was signed, the Congo State forces had occupied Rejaf, and by a tacit understanding, the State was permitted to remain in occupation of the Lado Enclave. "The Bahr-el-Ghazal has never ceased to be British, and any extension of the sphere of influence of the Congo State beyond the limits of the Lado Enclave, without the express sanction of the British Government is a wholly unjustifiable, and indeed, filibustering proceeding."

In 1899, Leopold wanted to annul the Franco-Congolese Treaty, allowing him to gain more territory but the British opposed it, claiming that "serious consequences" would occur if Leopold attempted to expand the enclave's borders.

In January 1900, some bored officials who had decided to explore the swamps beyond the Lado border were found by a British patrol. British officials believed this to be an official sortie and considered sending a military expedition to the enclave.

Kiro had been the location of the British residence in the region but following the move to Congo Free State rule, a post (also called Kiro) was established a few kilometres north of the Lado Enclave's Kiro on the west bank of the Nile. However, in April 1901 it was discovered that this post lay within the enclave's territory and a new British post was created across the river at Mongalla. The British were quick to populate and arm Mongalla, with a British Inspector, police officer, two companies of the Sudanese battalion under a British officer and a gunboat stationed there.

In 1905, the strategic importance of the Lado Enclave became clear enough for the British to consider offering Leopold a small part of the Bahr-el-Ghazal in exchange for the enclave. As part of this offer, the British agreed to remove their troops from the area while Leopold considered the offer. However, instead of considering, Leopold immediately ordered his troops to occupy the now vacant military posts, which was seen as a "futile and disastrous outbreak of Leopold's lust for short-term advantages. Its inevitable result was a sharp British order to Congolese forces to retreat southwards, followed by the closing of the Nile to Congolese transport."

In May 1906 the British cancelled the lease of the Bahr-el-Ghazal, although Leopold refused to evacuate the region until the promised railway between the Lado Enclave and the Congo frontier was built.

The Lado Enclave was important to the Congo Free State as it included Rejaf, which was the terminus for boats on the Nile, as the rapids there proved a barrier to further travel. Rejaf was the seat of the commander, the only European colonial official within the enclave, who were in place from 1897 to June 1910. Efforts were made to properly defend Lado against any possible incursion by another colonial power, with twelve heavy Krupp fort guns installed in November 1906.

However, there continued to be uncertainty in the enclave with the knowledge that the enclave would revert to British rule upon Leopold's death. As a result, the Congo Free State was unable to create an effective government, leading to civil unrest within the enclave.

There were also rumours of gold deposits in Lado which led to great interest in the region in the early years of the twentieth century.

The enclave had an area of about 15,000 square miles (39,000 km), a population of about 250,000 and had its capital at the town of Lado which is near to the modern-day city of Juba. Under the 1894 Anglo-Congolese Treaty, the enclave's territory was dictated as "bounded by a line starting from a point situated on the west shore of Lake Albert, immediately to the south of Mahagi, to the nearest point of the frontier defined in paragraph (a) of the preceding Article. Thence it shall follow the watershed between the Congo and the Nile up to the 25th meridian east of Greenwich, and that meridian up to its intersection by the 10th parallel north, whence it shall run along that parallel directly to a point to be determined to the north of Fashoda. Thence it shall follow the thalweg of the Nile southward to Lake Albert, and the western shore of Lake Albert to the point above indicated south of Mahagi."

A landlocked territory, it was bordered on the north by the Anglo-Egyptian Sudan province of Bahr-el-Ghazal and on the east by the Nile. The shifting sandbanks of the Nile led to islands on the border of the enclave and the Sudan regularly created or destroyed and made navigability difficult.

Described variously as "a small muddy triangle along the Nile, ... a chain of desolate mudforts" and "shaped like a leg of mutton".

Lado was the largest town in the enclave, while Yei, a fortified military station on the Yei River, was considered the second most important town. The northernmost post was Kiro, on the west bank of the Nile nineteen kilometres above the British post at Mongalla, while Dufile, Ismailia and Wadelai were other settlements. English traveler Edward Fothergill visited the Sudan around 1901, basing himself at Mongalla between Lado to the south and Kiro to the north, but on the east shore of the river. By his account "Kiro, the most northern station of the Congo on the Nile, is very pretty and clean. Lado, the second station, is prettier still". However, he said that although the buildings were well made, they were too closely crowded together.

While a large percentage of its population were Indigenous inhabitants, many Bari left the enclave, escaping Congo Free State rule, and settled on the eastern (Sudanese) shore of the Nile.

The enclave was an area of seismological activity, particularly around Rejaf (which means "earthquake" in Arabic). A fault line runs as a notable escarpment west of Rejaf south to Lake Albert, and while no major tremors occurred during the existence of the Lado Enclave, there was a noticeable earthquake in the region, centered on Rejaf, on 21 May 1914, which destroyed or damaged most of the buildings in the town.

The enclave was well known for its enormous herds of elephants which drew big-game hunters from around the world. Starting about six weeks after Leopold's death in December 1909, from the years 1910 to 1912, hunters arrived in great numbers and shot thousands of elephants before Sudanese officials were able to take control of the area. One of the most prolific was the Scottish adventurer W. D. M. Bell.

Hippopotami were described as having been "extremely numerous and particularly obtrusive" in the enclave but their presence had dropped to almost zero during the enclave's existence.

In 1912, renowned naturalist Dr Edgar Alexander Mearns travelled through the enclave as part of his expedition through eastern Africa searching for new fauna, and reported a new subspecies of Temminck's courser within the enclave.

Tsetse flies were common in the enclave and African trypanosomiasis (also known as sleeping sickness), the medical condition that can occur as a result of a tsetse fly bite, led to a number of fatal cases recorded in the enclave.

Malaria was the most common disease in the region, with about 80 per cent of the sickness in the neighboring Bahr El Ghazal due to malaria. Those suffering from malaria also faced Blackwater fever, whereby red blood cells burst in the bloodstream, releasing hemoglobin directly into the blood vessels and into the urine, frequently leading to kidney failure.

Captain Harry Ranken, who would later be awarded the Victoria Cross for gallantry in World War I, was posted to the enclave in 1911 and 1914 as a member of the Sudan Sleeping Sickness Commission, where he was based in Yei and researched methods of treatment for sleeping sickness and yaws. He was due to return to the enclave in 1915 to complete his research but died from shrapnel wounds in France while serving on the front line.

The seasons in the Lado Enclave were similar to neighboring regions of East Africa, whereby there were two seasons, with the dry season occurring from December to February and the wet season from March to November, although daily rain storms usually did not occur until June.

The temperature was comparatively cool, and the temperature was said to "very seldom rise" to 100 °F (38 °C).

The economy of the Lado Enclave was based on ivory and rubber. As a small region, the enclave's trading ability was small, although a lively trading community of "Egyptians, Copts and Greeks" was recorded. Cotton, alcohol and utensils were the most popular items traded into the enclave.

Neither the Congo Free State nor the Sudanese introduced money taxation, preferring instead to collect grain and livestock as taxation.

On 10 June 1910, following Leopold's death, the district officially became a province of the Anglo-Egyptian Sudan, with British Army veteran Captain Chauncey Hugh Stigand appointed administrator. In 1912 the southern half of the Lado Enclave was ceded to Uganda, then a British protectorate. However, in reality, following Leopold's death and the subsequent withdrawal of Belgian colonial troops, British authorities neglected to administer the area, leaving the enclave to become a "no man's land". Ivory hunters moved in and shot almost all of an estimated herd of 2000 elephants resident in the enclave, netting the hunters large profits.

In 1912 Captain Harry Kelly of the British Royal Engineers was sent to the region to adjust the Sudan-Uganda border, with the plan to grant Uganda a southern part of the enclave, which Uganda could more easily administer, and in return to transfer part of northern Uganda to the Sudan, thereby placing all navigable parts of the Nile under Sudanese control. This was achieved on 1 January 1914 when Sudan formally exchanged part of the enclave for a stretch of the Upper Nile. The area of the Lado Enclave integrated into Uganda was renamed West Nile, best known as the ancestral home of Idi Amin.

Later Gondokoro, Kiro, Lado and Rejaf were abandoned by the Sudanese government, and no longer appear on modern maps.

Although the Lado Enclave was a small, remote area in central Africa, it captured the imagination of world leaders and authors, becoming a byword for an exotic region, and was used as a setting for their stories.

Winston Churchill travelled through the enclave, declaring it "present(ed) splendid and alluring panoramas".

Lord Kitchener travelled to Lado for hunting, and shot a large white rhinoceros considered a "splendid trophy", with the horn being "some twenty seven inches long" and the rhinoceros standing six feet tall.

Additionally, the Lado Enclave was also a popular attraction for the wealthy classes, with reports stating that "still more exhilarating was to be taken to the Lado Enclave, East Africa's equivalent to the badlands".

The enclave was the site of "the last big elephant hunt on the continent", as dozens of hunters from around the world converged on the enclave over the years 1907 to 1909, killing several thousand elephants. The publicity from this hunt and the resulting public outrage led to the beginnings of the conservation movement.

In his novel Elephant Song, Wilbur Smith refers to the slaughter of elephants in the Lado Enclave following the withdrawal of the Belgian colonial service in 1910, Ernest Hemingway, in his novel True at First Light, references the enclave as a wild place while the 1936 story "The Curse of Simba", refers to the enclave as the possible locale of the legendary Elephants' graveyard.

This section may be confusing or unclear to readers. In particular, two apparently contradictory lists are given. Please help clarify the section. There might be a discussion about this on the talk page. (July 2023) (Learn how and when to remove this message)

From	To	Name	Comments
17 February 1897	November 1897	Louis Napoléon Chaltin
November 1897	15 December 1898	Léon Charles Édouard Hanolet
15 December 1898	1 May 1900	Jean Baptiste Josué Henry de la Lindi
1 May 1900	March 1902	Louis Napoléon Chaltin (Second time)
December 1901	August 1903	Captain Léon Charles Édouard Hanolet (Second time)
January 1903	24 March 1904	Commissaire General Georges François Witterwulghe	Died at Yei on 8 May 1904.
24 March 1904	1904	Commandant Florian Alexandre François Wacquez	Acting for Witterwulghe to 8 May 1904.
1904	May 1907	Ferdinand, baron de Rennette de Villers-Perwin	Acting to August 1906

Commandants of the Lado Enclave:

• 1900 – January 1903: Gustave Ferdinand Joseph Renier (s.a.)
• January 1903 – August 1903: Albéric Constantin Édouard Bruneel
• August 1903 – March 1905: Henri Laurent Serexhe
• March 1905 – January 1908: Guillaume Léopold Olaerts
• January 1908 – April 1909: Léon Nestor Preud'homme
• April 1909 – 1910: Alexis Bertrand
• 1910 – June 1910: Charles Eugène Édouard de Meulenaer

• Colonisation of the Congo
• Congo Crisis
• Belgian Colonial Empire

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4°50′N 29°50′E / 4.833°N 29.833°E / 4.833; 29.833