Somaliland campaign
Part of theScramble for Africa andWorld War I (1914–1918)
Aerial photograph of the Dhulbahante garesa at Taleh, the capital of the Dervishes.
Date 1899–1920 Location Horn of Africa Result Allied victory
Belligerents
British Empire  Italy  Ethiopia (1900–1904)	Dervish State Supported by: Ottoman Empire  Ethiopia (1915–1916)[1][2]  Germany[3]
Commanders and leaders
Eric Swayne (WIA) Richard Corfield † William Manning Robert Gordon Giacomo De Martino Menelik II	Mohamed Hassan # Haji Sudi † Nur Aman # Ismail Mire Ibrahim Boghol † Abdallah Shihiri
Strength
28,000	~25,000
Casualties and losses
British forces suffered approximately 660 killed and over 1,000 wounded, with additional casualties among locally raised units.[4][5]	4,000 Dervishes killed[6]
100,000–150,000 deaths in Somaliland[6]

TheSomaliland campaign, also called theAnglo-Somali War or theDervish rebellion, was a rebellion in theHorn of Africa, by theDervish, a Somali movement led bySayid Muhammed Abdullah Hassan, which continued independently for 21 years between 1899 and 1920.^[7][8][9]

The opening battle of the rebellion saw the Dervish attack the Ethiopian garrison atJigjiga in March 1900 and take control of parts of the easternOgaden region. The Dervish then declared war on the British colonial administration inSomaliland.^[10] They would also attack and seize parts ofItalian Somaliland.^[11] The British launched five military expeditions, mainly in theNugaal Valley, between 1900 and 1920 against the Dervish.^[12] They were assisted in their offensives by theEthiopian Empire and theKingdom of Italy. The British also armed rival Somali clans against the Dervish.^[13] The Dervish movement successfully repulsed the British Empire in the first four expeditions, forcing them to retreat to the coastal region and continually raided British controlled parts of Somaliland. The conflict ravaged the region's economy. It has been estimated that around one-third of the population of Somaliland died during the Dervish rebellion.^[14]

With the defeat of theOttoman andGerman empires inWorld War I, the Dervish movement lacked any allies. The British thus turned their attention to the Dervishes,^[15] and launched a massive combined armsoffensive on the Dervish forts.^[16][17] The Dervish retreated to their capital atTaleh, which was aerially bombed and then captured by the British, leading to the fall of the Dervish movement and bringing the conflict to an end.^[18][16][19]

Although nominally part of the Ottoman Empire,Yemen andthesahil, includingZeila, in 1841,Haj Ali Shermerki, a successful and ambitious Somali merchant, purchased from them executive rights over Zeila. Shermerki's governorship had an instant effect on the city, as he manoeuvred to monopolize as much of the regional trade as possible, with his sights set as far asHarar and theOgaden.^[20]Zeila and later Somaliland came under the control ofMuhammad Ali,Khedive of Egypt, between 1874–1884.^[21]

In 1874–75, theKhedivate of Egypt obtained afirman from the Ottomans by which they secured claims over Somaliland. At the same time, the Egyptians received British recognition of their nominal jurisdiction as far east asCape Guardafui.^[21]

TheBritish Somalilandprotectorate was subsequently established in the late 1880s after the ruling Somali authorities signed a series of protection treaties granting the British access to their territories on the northwestern coast. Among the Somali signatories were the Gadabuursi (1884), Habar Awal (1884 and 1886),^[22] and Warsangali.^[23]

When the Egyptian garrison in Harar was eventually evacuated in 1885, Zeila became caught up in the competition between theTadjoura-based French and the British for control of the strategicGulf of Aden littoral. By the end of 1885, the two powers were on the brink of armed confrontation, but opted instead to negotiate.^[24] On 1 February 1888 they signed a convention defining the border betweenFrench Somaliland and British Somaliland.^[25]

TheMajeerteen Sultanate within the northeastern part of the Somali territories was established in the mid-18th century and rose to prominence the following century, under the reign of the resourcefulboqor (king of kings)Osman Mahamuud.^[26]

In late December 1888,Yusuf Ali Kenadid, the founder and first ruler of theSultanate of Hobyo, requested Italian protection, and a treaty to that effect was signed in February 1889, making Hobyo an Italian protectorate. In April, Yusuf's uncle and rival,Boqor Osman, requested a protectorate from the Italians and was granted it.^[27] Both Boqor Osman and Sultan Kenadid had entered into the protectorate treaties to advance their own expansionist goals, with Sultan Kenadid looking to use Italy's support in his ongoing power struggle with Boqor Osman over the Majeerteen Sultanate, as well as in a separate conflict with theSultan of Zanzibar over an area to the north ofWarsheikh. In signing the agreements, the rulers also hoped to exploit the rival objectives of the European imperial powers so as to more effectively assure the continued independence of their territories. The terms of each treaty specified that Italy was to steer clear of any interference in the sultanates' respective administrations.^[28]

In return for Italian arms and an annual subsidy, the Sultans conceded to a minimum of oversight and economic concessions.^[27] The Italians also agreed to dispatch a few ambassadors to promote both the sultanates' and their own interests.^[28] The new protectorates were thereafter managed byVincenzo Filonardi through achartered company.^[27] An Anglo-Italian border protocol was later signed on 5 May 1894, followed by an agreement in 1906 between Cavalier Pestalozza and General Swaine acknowledging thatBuraan fell under the Majeerteen Sultanate's administration.^[28]

During the pre-colonial era, the Ogaden region was neither under Ethiopian rule, norTerra nullius, as it was occupied by organized Somali communities.^[29] In 1887, Ethiopian EmperorMenelik II conquered the city ofHarar duringhis efforts to expand the empire and in 1891, announced a programme of ambitiouscolonialism to the European powers. This marked the start of a tentative yet violent invasion into theOgaden region.^[30] In the first phase of Ethiopian penetration into the region, Menelik dispatched his troops from occupied Harar on frequent raids that terrorized the region.^[31]

Menelik's expansion into Somali inhabited territory coincided with the European colonial advances in theHorn of Africa, during which theEthiopian Empire imported a significant amount of arms from European powers.^[32] The large scale importation of European arms completely upset the balance of power between the Somalis and the Ethiopian Empire, as the colonial powers blocked Somalis from receiving firearms.^[33]In 1897 in order to appease Menelik's expansionist policy Britain ceded almost half of the British Somaliland protectorate to Ethiopia in theAnglo-Ethiopian Treaty of 1897. Ethiopian authorities have since then based their claims to the Ogaden upon the treaty and the exchange of letters which followed it.^[34]

As EmperorMenelik II continued his campaign of indiscriminate raiding and attacks against the Somalis of the Ogaden region between 1890 and 1899, Somali clans residing in the plains ofJigjiga were in particular targeted. The escalating frequency and violence of the raids resulted in Somalis consolidating behind the Dervish Movement.^[35] As the Ethiopian Empire began expanding into Somali territories at the start of the 1890s, the town ofJigjiga came under intermittentmilitary occupation until 1900. At the start of the year, Abyssinian troops occupied the town with the construction of a fort in the outskirts.^[36]

In 1895Muḥammad ibn 'Abdallāh Hassan began his preaching in Berbera, the administrative centre ofBritish Somaliland, lashing out not only against some of the traditional Somali customs, which showed little respect for religious rites, but also against the penetration of Christian missionaries in the region, and therefore against the colonial policy of the British. The preaching obtained little results in Berbera, where the majority of the population was faithful to theQadiriyya brotherhood, and in 1897 Abdullah Hassan retired to Kirrit, in the interior regions, to his maternal clan of the Dhulbahante: having founded his own brotherhood, he began his preaching work again, aiming at a strong anti-Western charge and announcing a jihad against the foreign colonisers, British and Ethiopians in particular. In an attempt to overcome the age-old tribal and clan divisions of the Somalis, themullah ("master") sought to found a community united by the common Islamic faith, defining his followers not with the names of their respective tribes but with the all-encompassing term ofdaraawiish, or the "dervishes ".^[37]

On 12 April 1899, the British Consul General inBerbera,James Hayes Sadler, sent a first report on Abdullah Hassan's activities to the Foreign Office in London, estimating that he had already gathered around 3,000 followers; in the following August, the Mullah gathered around 5,000 armed men, 200 of whom were equipped with modern rifles, in the town ofBurao, then carrying out a first raid against the town of Sheikh, less than 100 kilometres from Berbera, whose inhabitants had not responded to his appeals.^[38] On 1 September 1899 Abdullah Hassan sent an ultimatum to the British authorities in Berbera, but a few days later his movement began to show signs of weakening due to the never-ending tribal divisions: after having put to death the sultan of Dhulbahante Ali Farah, guilty of not having sided with him, the Mullah was abandoned by many followers belonging to his maternal clan, and he soon had to leave Somaliland, taking refuge in the village of Boholte, near his paternal tribe of the Ogaden. Here the Mullah resumed his preaching, immediately gathering many followers among the Ogaden, who were directly threatened by the aggressive Ethiopian expansion towards the east; Abdullah Hassan also obtained help in arms and ammunition from the sultan of MigiurtiniaOsman Mahamuud, who intended to use the dervishes against his rival of HobyoYusuf Ali Kenadid with whom he disputed several territories in the valley of theNugaal.^[39]

In March 1900, dervishes began attacking merchant caravans fromHarar into Ogaden territory, provoking a reaction from the Ethiopians: a column of 1,500 men under Gerazmatch Bante carried out punitive raids into the Ogaden, but was later attacked at Jijiga by nearly 6,000 dervishes led by the Mullah at theBattle of Jigjiga. Both sides claimed victory following the battle; the improved availability of modern rifles enabled the Ethiopians to inflicted heavy losses on the attackers. Although suffering heavy casualties during the attack, the dervishes accomplished their objective of returning all the livestock confiscated by the Abyssinians.^[40] This raid allowed Abdullah Hassan to gather even more followers among the Ogaden, and he then began to push his raids even beyond the frontier intoBritish Somaliland where he raided the non-DervishQadariyyah clans for their camels and arms.^[41]

In the spring of 1901, the British and Ethiopians decided to mount a joint expedition against the rebels: 1,500 Somali mercenaries, under British officers, under the command of Lieutenant ColonelEric John Eagles Swayne, moved from the north against the village of Jahelli, where the Mullah was quartered, while from Harar 15,000 Ethiopians headed east; mostly mounted on horseback, the dervishes managed to elude the slow-moving Ethiopian army and, although they were three times engaged in combat by the British, avoided defeat. After three months of campaigning, the Mullah led his warriors safely across the border into Mijiurtinia, forcing the British to call off their pursuit.^[42]

Although Migiurtinia had to suffer in April 1901 a joint punitive expedition by the Italians and Hobyo for the support given to the dervishes, Sultan Osman Mahamuud continued to provide support to the Somali rebels both in terms of supplies of rifles and ammunition, and by providing safe havens where the Mullah could reorganise his forces. In October 1901 Abdullah Hassan brought his warriors, now numbering 12,000 men and 1,000 rifles, back to southern Somaliland, beginning a series of raids against the possessions of the Dhulbahante clan, who were hostile to him; At the same time, the Mullah kept his agreement with Osman Mahamuud and also led a series of attacks against Hoybo, capturing the important town ofGalkayo in the summer of 1902 and pillaging the lands of the vassals of SultanYusuf Ali Kenadid. The renewed activity of the dervishes forced the British to organize a new campaign, and Colonel Swayne gathered a contingent of 2,300 men between Somali recruits and African regulars of theKing's African Rifles, also equipped with cannons and machine guns; After some initial successes, on 6 October 1902 Swayne's force was ambushed by Dervishes while crossing the bush near the village of Erigo: the Somali recruits collapsed, causing the entire contingent to retreat in disarray towards Buuhoodle and the abandonment of a Maxim machine gun in the hands of the rebels.^[43]

The British became convinced of their need of Italian assistance. In 1903, the ItalianForeign Ministry permitted the British to land forces atHobyo (Obbia). An Italian naval commander off Hobyo feared "that the expedition will end in a fiasco; the Mad Mullah will become a myth for the British, who will never come across him, and a serious worry for ... our sphere of influence."^[44]

The relationship between Hobyo and Italy soured when Sultan Kenadid refused the Italians' proposal to allow British troops to disembark in his Sultanate so that they might then pursue their battle againstDiiriye Guure's^[45] Dervish forces.^[28] Viewed as too much of a threat by the Italians, Kenadid was exiled first to the British-controlledAden Protectorate, and then toItalian Eritrea, as was his son Ali Yusuf, the heir apparent to his throne.^[46]

In May, the BritishForeign Office realised the error, and had Kenadid's son appointed regent, just in time to forestall an attack inMudug by the Sultan's army.^[47]

In early March 1903 the operation began. 5,000 Ethiopians left Harar to head towards Gheledi, along the course of theShebelle River river, in order to cut off the Dervishes' retreat towards the south. Simultaneously, the British columns starting from Obbia and Berbera (composed mainly of Sudanese, Indian and Yao troops), under the command ofWilliam Manning, moved towardsGalkayo to trap theMullah's forces in a pocket. The more agile Dervishes managed to escape the trap by moving towardsGumburu Cagaarweyne and Ual Ual, in the Ogaden region. This forced the British to advance into a territory covered in thick bush and without water.

On 17 April a British advance detachment was charged by Dervish cavalry under the command ofSultan Nur^[48] nearGumburu, but was almost completely annihilated with the loss of 9 British officers, 187 Yao African soldiers and some machine guns. A few days later a second column was attacked atDaratoleh and put to flight after losing a quarter of its men. The expedition ended in failure as theDervish annihilated the British detachment nearGumburru andDaratoleh.^[49][50] For trying to save a fellow officer, Captain Charles Bruce, during the fighting withdrawal three officersJohn Gough,George Rolland,William George Walker were awarded Victoria Crosses.^[51] When the fight was over, a lone Dervish horseman galloped to the Dervish camp and announced that the English had been wiped out. The Mullah immediately mounted his horse, Dodimer and rode to the field ofbattle.^[52]

With 1,200–1,500 rifles, 4,000 ponies and some spearmen, the Dervish occupied theNugal Valley from Halin in the British protectorate toEyl (orIllig) on the Italian-held coast. The main British force nearGalad (Galadi) under GeneralWilliam Manning retreated north along the lineBohotleh–Burao–Sheekh. This "old-established line" had already been breached by the Dervish when they invaded theNugal.^[53] By the end of June, the withdrawal was complete.

After the failure of General Manning's offensive, GeneralCharles Egerton was entrusted with a response. Following extensive preparations, he united his field force at Bacaadweeyn (Badwein) on 9 January 1904 and defeated the Mullah atJidali the next day. The British and their allies from Hobyo harassed the dervishes along their retreat, and lost many of his camels and livestock throughout February.^[54]

In early March, the second phase of operations began. The Ethiopians advanced as far as Gerlogubi but turned back in early April. TheItalian Navy bombardedEyl in the winter to no effect. On 16 April, three ships of theEast Indies Station under Rear AdmiralGeorge Atkinson-Willes left Berbera planning to capture Eyl in cooperation with an advance overland.^[55] The attack on Eyl took place on 21 April. A Royal Naval detachment, reinforced by three companies of theRoyal Hampshire Regiment, stormed and captured the forts at Illig, the ships' guns supporting the attack. The British lost 3 men killed and 11 wounded, and the Dervishes 58 killed and 14 wounded.^[56] The naval detachment remained ashore for four days, assisted by an Italian naval detachment that arrived on 22 April. Control of Ilig was finally relinquished to Ali Yusuf of Hobyo.^[57] Having defeated his forces in the field and forced his retreat, the British "offered the Mullah safe conduct into permanent exile at Mecca"; the Mullah did not reply.^[47]

The initiatives for negotiations, was started by theMullah himself who wrote three letters in March 1904 to Lt. Vessel Spagna, commander of the Italian squad inBosaso.^[58]

Giulio Pestalozza in his second meeting with the dervish October 17, 1904 was accompanied by Sylos and Paladini, two fellow Italians. After the second meeting the Mullah declared to Sheri and Pestalozza the following:

Now, O Pestalozza, you and Abdallah Sheri, are delegated by me and to you I bestow the power for our cause. If you ask me pacification, I accept the peace and mutual trust – and I promise to stop the discord and the war in the interior. I, the Derwishes and all my people will molest no one, neither Mijerteyns, nor the people of Yusuf Ali, neither the English nor their dependents. I and my people are the people and dependents of the Government of Italy if it favours us and cools our heart (the text says our stomach or our desire); we will be under its flag. We only request that the Government of Italy allow(s) us to build a country at a point which it will consider suitable, from Gabbee to Garad.

After a long, three-way negotiation between the powers of Britain, Italy, Ethiopia and the Dervish, the British received a dervish delegation for a peace agreement:

On 5 March 1905, the treaty of Ilig or the Pestalozza agreement was signed between the dervish and the powers, the dervish represented by The Mullah and Sultan Nur along withDiria Arraleh and other Dervish representatives signed the final agreements^[60] Dervish peace treaty with the British, Ethiopians and Italian colonial powers on 5 March 1905, became known as the Ilig Treaty or the Pestalozza agreement.

Far from abandoning the project of driving out all foreign colonizers from Somalia, the Mullah used the period of truce to reorganize his forces, expand his arsenal of modern weapons, and forge new alliances with other Somali clans and tribes. Abdullah Hassan then lost no opportunity to destabilize his neighbors: in February 1907 he sent encouragement and a shipment of modern rifles to theBimaal tribes ofBenadir who, inspired also by the Mullah's example, had risen up against the Italian colonial authorities, while in the following September he sent weapons and warriors to help the people of Ogaden, who were dealing with a new punitive expedition by the Ethiopians. At the beginning of 1908 the Mullah began to weave new alliances, convincing the Bagheri tribes of the Uebi Scebeli valley in the south and theWarsangali clan of north-eastern Somaliland to join his jihad against the Europeans, in addition to his traditional allies in the Ogaden tribes; overcoming traditional religious hatreds, Abdullah Hassan also sent letters of friendship to the Ethiopian emperor Menelik II to negotiate an alliance against the Europeans, a project which later fell through due to the betrayal of his representative, who passed the Mullah's letters to the Italians and the British.^[61]

In September 1908 the dervishes broke the deadlock and resumed the conflict: a column invaded the sultanate of Obbia and attacked the region of Mudug, in an attempt to find a junction with the Bagheri to the south, while raids were launched against the tribes of Ogaden who had accepted Ethiopian domination and those of Somaliland loyal to the British. Initially, the European powers tried to counter this resurgence of guerrilla warfare without engaging in direct military action, decreeing a naval blockade of the Somali coasts and sending a diplomatic mission to the Mullah, an initiative which, however, ended in failure. The work of undermining the internal cohesion of the dervish movement was more successful: thanks to the corruption of an emissary of the Mullah, the British and Italians obtained from Abdullah Hassan's former master, Mohamed Saleh, a letter condemning the disciple's actions, which was immediately exploited for propaganda actions that caused the desertion of several hundred dervish warriors.^[62]

The charisma of Abdullah Hassan, however, managed to keep the central nucleus of the dervish movement united, and faced with the resurgence of rebel attacks between March and April 1910, the British government ordered the evacuation of the internal regions of Somaliland and the concentration of all available forces to guard the ports on the coast; this measure caused the immediate collapse of the regions involved into a state of anarchy, with the outbreak of fighting and armed clashes between the various local tribes against each other. Damaged by the Italian-British naval blockade, the sultanates of Migiurtinia and Warsangali suspended the sending of weapons and food to the dervishes, forcing the Mullah to abandon the Nogal valley: in November 1911, 6,000 dervishes penetrated into the southern regions of Somaliland, severely defeating the Dhulbahante tribe and causing a vast exodus towards the coastal cities; after various raids, in June 1912 the Mullah moved his main camp further south, to Gerrouei, to then settle, six months later, nearTaleh. Here Abdullah Hassan decided to give life to his project of building an embryonic independent Somali national state, by having a solid, stable stronghold built, protected by a chain of forts to the west, from the mountain of Shimbiris on the coast to the village of Gid Ali in the interior, chosen as a border with the remaining British possessions.^[63]

Between 1913 and 1915, while the attention of the European powers was absorbed by the events of the First World War, the “Dervish State” reached its maximum expansion: on 9 August 1913 a Dervish column clashed with the only remaining British mobile force in the colony, ColonelRichard Corfield's Camel Constabulary, at thebattle of Dul Madoba, killing its commander; on 5 September of the following year, 60 mounted Dervishes entered western Somaliland and sacked the town of Burao, while between 12 and 13 March 1914 a small Dervish force penetrated 500 kilometres into the colony to attack the outskirts of the capital Berbera, then sacking several villages on the way back.^[64] The Mullah's allies had less success on the south-eastern front: starting in 1911, a joint force of Obbia's troops anddubats of theRoyal Corps of Colonial Troops ofItalian Somaliland managed to repel the offensive thrusts that the Bagheri tribes launched towards the sea, then moving on to the counterattack at the end of February 1912 when an Italian column occupied the Shidle region; in June 1913 a new Italian expedition led to the definitive defeat of the Bagheri forces and to the occupation in southern Somalia of several inland towns such as Bur Acaba,Baidoa, and Bulo Burti, while further north Obbia's troops reconquered Mudugh from the rebels, thus forming a barrier to the expansion of the Dervishes towards the east.^[65]

During theFirst World War, the Mullah sought to strengthen his position and seek new allies. The death ofMenelik II in December 1913 led to his grandsonLij Iyasu succeeding to the throne inAddis Ababa, Iyasu pursued a more conciliatory policy towards the Muslims, establishing his court in Harar and establishing friendly relations with theOttoman Empire and theGerman Empire, which were intent on bringing Ethiopia into the war on the side of the Central Powers. The friendlier policy undertaken by Iyasu aroused the interest of Abdullah Hassan: in early 1915, emissaries of the Mullah visited the Ethiopian court several times to negotiate an alliance with the Ottomans, and from Harar shipments of arms were sent to the Dervish forces. The alliance was, however, short-lived: concerned by the conciliatory policy towards the Muslims, in September 1916 the Ethiopian authorities led a coup d'état in Addis Ababa, dethroning Iyasu and replacing him with Menelik's daughter,Zewditu; supplied with weapons by the British and French, the imperial forces defeated Iyasu in theBattle of Segale (22 October 1916), recapturing Harar and severing ties with the Dervishes.^[66]

With the possibility of an alliance with Ethiopia having faded, the Dervish state found itself increasingly isolated: the Ottoman Empire, which had entered the war with the Entente powers at the end of 1914, tried to send the Mullah arms, ammunition, money, and political support, but the Italian-British naval blockade of the Somali coast prevented a massive influx of aid. Between 1915 and 1918 the Dervishes remained essentially on the defensive, conducting only raids and small-scale actions; in February 1915, an offensive by the reconstituted British Somaliland Camel Corps led to the capture of the Dervish fortifications set up on Mount Shimbiris and other minor positions, forcing the Mullah to withdraw his western line of resistance to the vicinity of his stronghold of Taleh. Further south, dervish columns conducted raids into Italian-controlled territories in February 1916, but were stopped by the garrisons of Bulo Burti andTiyeglow; on 27 March, thanks to the betrayal of some Somali irregulars hired by the Italians, the dervishes took and sacked the fort of Bulo Burti, but were then repelled by a punitive expedition led by Colonel Bessone's askaris.^[67]

The cordon tightened around his possessions led to a slow suffocation of the Mullah's forces. In September 1919, Obbia's troops clashed with the Dervishes near the wells of Bullai and Angolaon, inflicting a defeat on them, while at the same time, irregular Somali bands in the service of Italy plundered the surroundings of the southern Dervish stronghold ofBeledweyne and forces of Migiurtinia reoccupied the Nogal valley, later crossing the border into Somaliland; these continuous clashes wore down the Dervish forces, forcing the Mullah to move to the north of Somaliland, abandoning the stronghold of Taleh, where only a weak garrison was left.^[68]

Faced with the evident collapse of the Dervish forces, in October 1919 the London government began preparations for a decisive campaign; A substantial expeditionary force was assembled consisting of theSomaliland Camel Corps, a battalion of the King's African Rifles and a new arm making its appearance in the theatre for the first time, the air force: in late 1919 the Royal Air Force established an aviation unit ("Z Force") at Berbera with twelve Airco DH.9A bombers, transported to the theatre by the seaplane tender HMS Ark Royal. On 21 January 1920 the British contingent began its operations, and one bomber managed to attack the Mullah's camp at Medisce, causing confusion in the Dervish ranks; further bombing in the following days helped the attack on 25 January by the land forces, which captured the Dervish forts of Gidi Ali and Barhan.

Defeated and disorganized, the Mullah managed to retreat with a nucleus of warriors to Taleh, where however he was immediately located by RAF aircraft; between 2 and 3 February the Dervish stronghold was subjected to continuous aerial bombardment, in preparation for the ground assault launched on 9 February: Abdullah Hassan and about sixty followers managed to escape before the encirclement was completed, but the demoralized garrison surrendered almost without a fight. Hunted by British troops, the Mullah managed to reach his Bagheri allies in the south, albeit with a reduced following; Now isolated from Somaliland, Abdullah Hassan tried to establish a new guerrilla centre in the valley of theShebelle River, but in August 1920 he suffered a new setback when his camp was attacked by 3,000 irregulars ledHaji Warabe of theReer Caynaashe, suffering further losses.^[69]

In October 1920, he eventually settled down at GuanoImi, at the head waters of theShebelle River in theArsi country to seek the protection of the Ethiopian authorities but on 21 December 1920 (the precise date is unclear) Abdullah Hassan died after six days of illness; the death of the Mullah effectively decreed the end of the dervish revolt.^[70]

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• 1900s in Somalia
• 1910s in Somalia
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