East African campaign (World War I)
The East African campaign in World War I was a series of battles and guerrilla actions, which started in German East Africa (GEA) and spread to portions of Portuguese Mozambique, Northern Rhodesia, British East Africa, the Uganda Protectorate, and the Belgian Congo. The campaign all but ended in German East Africa in November 1917 when the Germans entered Portuguese Mozambique and continued the campaign living off Portuguese supplies.
The strategy of the German colonial forces, led by Lieutenant Colonel (later "Generalmajor") Paul von Lettow-Vorbeck, was to divert Allied forces from the Western Front to Africa. His strategy achieved only mixed results after 1916 when he was driven out of GEA and Allied forces became composed almost entirely of South African, Indian, and other colonial troops. Black South African troops were not considered for European service as a matter of policy, while all Indian units had been withdrawn from the Western Front by the end of 1915. The campaign in Africa consumed considerable amounts of money and war material that could have gone to other fronts.
The Germans in East Africa fought for the whole of the war, receiving word of the armistice on 14 November 1918 at 07:30 hours. Both sides waited for confirmation, with the Germans formally surrendering on 25 November. GEA became two League of Nations Class B Mandates, Tanganyika Territory of the United Kingdom and Ruanda-Urundi of Belgium, while the Kionga Triangle was ceded to Portugal.
In 1885, Germans colonized the lands that became German East Africa (Deutsch-Ostafrika). The territory itself spanned 384,180 sq mi (995,000 km2) and included the areas of present-day Rwanda, Burundi, and Tanzania. The indigenous population of Deutsch-Ostafrika numbered 7.5 million; 5,300 Europeans administered the colony. The colonial regime felt relatively secure but the effects of the Maji Maji Rebellion (1904–1905) were still being felt in 1914. The German colonial administration could call on a military Schutztruppe (protection force) of 260 Europeans and 2,470 Africans, plus 2,700 white settlers in the reservist Landsturm as well as a small paramilitary Gendarmerie.
The outbreak of World War I in 1914 increased the popularity of German colonial expansion and the conquest of a Deutsch-Mittelafrika ("German Central Africa") that would parallel a resurgent German Empire in Europe. To create Mittelafrika and link the German colonies in eastern, south-western and western Africa, territory belonging to the Belgian Congo would have to be annexed. The new territories would occupy central Africa and make Germany the dominant colonial power on the continent.
German military power in Africa was weak, its forces poorly equipped and dispersed. Although better trained and more experienced than their opponents, many of the German soldiers were reliant on weapons like the Model 1871 rifle, which used obsolete black powder. The Allied powers had similar problems of poor equipment and low numbers. Most colonial forces were paramilitary police for colonial repression, not armies to fight wars against other European powers.
The largest body of German troops was in East Africa but this was far too small to fight an aggressive war. The objective of the German forces in East Africa, led by Lieutenant-Colonel Paul von Lettow-Vorbeck, was to divert Allied forces and supplies from Europe to Africa. By threatening the important British Uganda Railway, Lettow hoped to force British troops to invade East Africa, where he could fight a defensive campaign. In 1912, the German government had formed a defensive strategy for East Africa in which the military would withdraw to the hinterland and fight a guerilla campaign.
The German colony in East Africa was a threat to the neutral Belgian Congo but the Belgian government hoped to continue its neutrality in Africa. The Force Publique was constrained to adopt a defensive strategy until 15 August 1914, when German ships on Lake Tanganyika bombarded the port of Mokolobu and then the Lukuga post a week later. Some Belgian officials viewed hostilities in East Africa as an opportunity to expand Belgian holdings in Africa; the capture of Ruanda and Urundi could increase the bargaining power of the De Broqueville government to ensure the restoration of Belgium after the war. During the post-war negotiation of the Treaty of Versailles, the Colonial Minister, Jules Renkin, sought to trade Belgian territorial gains in German East Africa for the Portuguese allocation in northern Angola, to gain Belgian Congo a longer coast.
The governors of the British and German East Africa wanted to avoid war and preferred a neutrality agreement based on the Congo Act of 1885, against the wishes of the local military commanders and their metropolitan governments. The agreement caused confusion in the opening weeks of the conflict. On 31 July, implementing contingency plans, the cruiser SMS Königsberg sailed from Dar-es-Salaam for operations against British commerce. She narrowly avoided cruisers from the Cape Squadron sent to shadow the ship and be ready to sink it. On 5 August 1914, troops from the Uganda protectorate assaulted German river outposts near Lake Victoria.
On the same day, the British War Cabinet ordered an Indian Expeditionary Force (IEF) to be sent to East Africa to eliminate bases for raiders. On 8 August, the Royal Navy cruiser HMS Astraea shelled the wireless station at Dar es Salaam, then agreed a ceasefire, on condition the town remained an open city. This agreement caused discord between Vorbeck and Governor Heinrich Schnee, his nominal superior, who opposed and later ignored the agreement; it also caused the captain of Astraea to be reprimanded for exceeding his authority. Before Battle of Tanga when the IEF attempted to land at Tanga, the Royal Navy felt obliged to give warning that they were abrogating the agreement, forfeiting surprise.
In August 1914, the military and para-military forces in both colonies were mobilised, despite restrictions imposed by the two governors. The German Schutztruppe in East Africa had 260 Germans of all ranks and 2,472 Askari, equivalent to the two battalions of the King's African Rifles (KAR) in the British East African colonies. On 7 August, German troops at Moshi were informed that the neutrality agreement was at an end and ordered to raid across the border. On 15 August, Askari in the Neu Moshi region engaged in their first offensive operation of the campaign. Taveta on the British side of Kilimanjaro fell, to two companies of Askari (300 men) with the British firing a token volley and retiring in good order. The Askari detachment on Lake Tanganyika raided Belgian facilities seeking to destroy the steamer Commune and gain control of the lake. On 24 August, German troops attacked Portuguese outposts across the Rovuma, unsure of the intentions of Portugal, which was a British ally, which caused a diplomatic incident which was only smoothed over with difficulty.
In September, the Germans began to raid deeper into British East Africa and Uganda. German naval power on Lake Victoria was limited to Hedwig von Wissmann and Kingani a tugboat armed with one pom-pom-gun, causing minor damage and a great deal of noise. The British armed the Uganda Railway lake steamers SS William Mackinnon, SS Kavirondo, SS Winifred and SS Sybil as improvised gunboats; the tug was trapped and then scuttled by the Germans. The Germans later raised Kingani, dismounted her gun and used the tug as a transport; with the tug disarmed "teeth removed, British command of Lake Victoria was no longer in dispute."
To solve the raiding nuisance and to capture the northern, colonised region of the German colony, the British devised a plan for a two-pronged invasion. IEF "B" of 8,000 troops in two brigades, would carry out an amphibious landing at Tanga on 2 November 1914, to capture the city and gain control the Indian Ocean terminus of the Usambara Railway. In the Kilimanjaro area, IEF "C" of 4,000 men in one brigade would advance from British East Africa on Neu-Moshi on 3 November 1914, to the western terminus of the railroad (see Battle of Kilimanjaro). After capturing Tanga, IEF "B" would rapidly move north-west, join IEF "C" and mop up the remaining German forces. Although outnumbered 8:1 at Tanga and 4:1 at Longido, the Schutztruppe under Vorbeck prevailed. In the East Africa volume of the British official history (1941), Charles Hordern described the events as one of "the most notable failures in British military history".
Königsberg of the Imperial German Navy was in the Indian Ocean when war was declared. In the Battle of Zanzibar, Königsberg sank the old protected cruiser HMS Pegasus in Zanzibar harbour and then retired into the Rufiji River delta. After being cornered by warships of the British Cape Squadron, including an old pre-dreadnought battleship, two shallow-draught monitors with 6 in (150 mm) guns were brought from England and demolished the cruiser on 11 July 1915. The British salvaged and used six 4 in (100 mm) guns from Pegasus, which became known as the Peggy guns; the crew of Königsberg and the 4.1 in (100 mm) main battery guns were taken over by the Schutztruppe and were used until the end of hostilities.
Lake Tanganyika expedition
The Germans had controlled the lake since the outbreak of the war, with three armed steamers and two unarmed motor boats. In 1915, two British motorboats, HMS Mimi and Toutou each armed with a 3-pounder and a Maxim gun, were transported 3,000 mi (4,800 km) by land to the British shore of Lake Tanganyika. They captured the German ship Kingani on 26 December, renaming it HMS Fifi and with two Belgian ships under the command of Commander Geoffrey Spicer-Simson, attacked and sank the German ship Hedwig von Wissmann. The Graf von Götzen and the Wami, an unarmed motor boat, became the only German ships left on the lake. In February 1916, the Wami was intercepted and run ashore by the crew and burned. Lettow-Vorbeck then had its Königsberg gun removed and sent by rail to the main fighting front. The ship was scuttled in mid-July after a seaplane bombing attack by the Belgians on Kigoma and before advancing Belgian colonial troops could capture it; Wami was later re-floated and used by the British.[j]
British Empire reinforcements, 1916
General Horace Smith-Dorrien was assigned with orders to find and fight the Schutztruppe but he contracted pneumonia during the voyage to South Africa, which prevented him from taking command. In 1916, General Jan Smuts was given the task of defeating Lettow-Vorbeck. Smuts had a large army (for the area), some 13,000 South Africans including Boers, British, Rhodesians and 7,000 Indian and African troops, a ration strength of 73,300 men. There was a Belgian force and a larger but ineffective group of Portuguese military units based in Mozambique. A large Carrier Corps composed of African porters under British command, carried supplies into the interior. Despite the Allied nature of the effort, it was a South African operation of the British Empire. During the previous year, Lettow-Vorbeck had also gained personnel and his army was now 13,800 strong.
Smuts attacked from several directions, the main attack coming from British East Africa (Kenya) in the north, while substantial forces from the Belgian Congo advanced from the west in two columns, crossing Lake Victoria on the British troop ships SS Rusinga and SS Usoga and into the Rift Valley. Another contingent advanced over Lake Nyasa (Lake Malawi) from the south-east. All these forces failed to capture Lettow-Vorbeck and they all suffered from disease along the march. The 9th South African Infantry, started with 1,135 men in February, and by October its strength was reduced to 116 fit troops, with little fighting. The Germans nearly always retreated from the larger British troop concentrations and by September 1916, the German Central Railway from the coast at Dar es Salaam to Ujiji was fully under British control.
With Lettow-Vorbeck confined to the southern part of German East Africa, Smuts began to withdraw the South African, Rhodesian and Indian troops and replace them with Askari of the King's African Rifles (KAR), which by November 1918 had 35,424 men. By the start of 1917, more than half the British Army in the theatre was composed of Africans and by the end of the war, it was nearly all-African. Smuts left the area in January 1917, to join the Imperial War Cabinet at London.
Belgian operations, 1916–17
The British conscripted 120,000 carriers to move Belgian supplies and equipment to Kivu (in the east of the Belgian Congo) between late 1915 and early 1916. The lines of communication in the Congo required c. 260,000 carriers, who were barred by the Belgian government from crossing into German East Africa and Belgian troops were expected to live off the land. To avoid the plundering of civilians, loss of food stocks and risk of famine, with many farmers already conscripted and moved away from their land, the British set up the Congo Carrier Section of the East India Transport Corps (Carbel) with 7,238 carriers, conscripted from Ugandan civilians and assembled at Mbarara in April 1916. The Force Publique, started its campaign on 18 April 1916 under the command of General Charles Tombeur, Colonel Philippe Molitor and Colonel Frédérick Olsen and captured Kigali in Rwanda on 6 May.
The German Askari in Burundi were forced to retreat by the numerical superiority of the Force Publique and by 17 June, Burundi and Rwanda were occupied. The Force Publique and the British Lake Force then started a thrust to capture Tabora, an administrative centre of central German East Africa. Three columns took Biharamuro, Mwanza, Karema, Kigoma and Ujiji. At the Battle of Tabora on 19 September, the Germans were defeated and the village occupied. During the march, Carbel lost 1,191 carriers died or missing presumed dead, a rate of 1:7, which occurred despite the presence of two doctors and adequate medical supplies. To prevent Belgian claims on German territory in a post-war settlement, Smuts ordered their forces to return to the Congo, leaving them as occupiers only in Rwanda and Burundi. The British were obliged to recall Belgian troops in 1917 and the two allies coordinated campaign plans.
Major-General Arthur Hoskins (KAR), formerly the commander of the 1st East Africa Division, took over command of the campaign. After four months spent reorganising the lines of communication, he was then replaced by South African Major-General Jacob van Deventer. Deventer began an offensive in July 1917, which by early autumn had pushed the Germans 100 mi (160 km) to the south. From 15–19 October 1917, Lettow-Vorbeck fought a costly battle at Mahiwa, with 519 German casualties and 2,700 British losses in the Nigerian brigade. After the news of the battle reached Germany, Lettow-Vorbeck was promoted to Generalmajor.[k] British units forced the Schutztruppe south and on 23 November, Lettow-Vorbeck crossed into Portuguese Mozambique to plunder supplies from Portuguese garrisons.
The Germans fought the Battle of Ngomano in which the Portuguese garrison was routed, then marched through Mozambique in caravans of troops, carriers, wives and children for nine months but were unable to gain much strength. Lettow-Vorbeck divided his force into three groups on the march; a detachment of 1,000 men under Hauptmann Theodor Tafel ran out of food and ammunition and was forced to surrender before reaching Mozambique. Lettow and Tafel were unaware they were only one day's march apart.
In Mozambique, the Schutztruppe won a number of important victories which allowed it to remain active but also came close to destruction during the Battle of Lioma and Battle of Pere Hills. The Germans returned to German East Africa and crossed into Northern Rhodesia in August 1918. On 13 November, two days after the Armistice was signed in France, the German Army took Kasama, which had been evacuated by the British. The next day at the Chambezi River, Lettow-Vorbeck was handed a telegram announcing the signing of the armistice and he agreed to a cease-fire. Lettow-Vorbeck marched his force to Abercorn and formally surrendered on 25 November 1918.[l] The campaign cost the British c. £12 billion at 2007 prices.
In one capacity or another, nearly 400,000 Allied soldiers, sailors, merchant marine crews, builders, bureaucrats and support personnel participated in the East Africa campaign. They were assisted in the field by an additional 600,000 African bearers. The Allies employed nearly one million people in their fruitless pursuit of Lettow-Vorbeck and his small force. Lettow-Vorbeck was cut off and could entertain no hope of a decisive victory. His aim was purely to keep as many British forces diverted to his pursuit for as long as possible and to make the British expend the largest amount of resources in men, shipping and supplies to his pursuit. Although succeeding in diverting in excess of 200,000 Indian and South African troops to pursue his forces and garrison German East Africa in his wake, he failed to divert additional Allied manpower from the European Theatre after 1916. While some shipping was diverted to the African theatre, it was not enough to inflict significant difficulties on the Allied navies.
In 2001, Hew Strachan estimated that British losses in the East African campaign were 3,443 killed in action, 6,558 died of disease and c. 90,000 African porters dead. In 2007, Paice recorded c. 22,000 British casualties in the East African campaign, of whom 11,189 died, 9 percent of the 126,972 troops in the campaign. By 1917, the conscription of c. 1,000,000 Africans as carriers, depopulated many districts and c. 95,000 porters had died, among them 20 percent of the Carrier Corps in East Africa. Of the porters who died, 45,000 were Kenyan and 13 percent of the male population. The campaign cost the British Empire £70 million, close to the British war budget in 1914. A Colonial Office official wrote that the East African campaign had not become a scandal only "... because the people who suffered most were the carriers - and after all, who cares about native carriers?". The Belgian record of 5,000 casualties includes 2,620 soldiers killed in action or died of disease but excludes 15,650 porter deaths. Portuguese casualties in Africa were 5,533 soldiers killed, 5,640 troops missing or captured and an unknown but significant number wounded.
In the German colonies, no records of the number of people conscripted or casualties were kept but in Der Weltkrieg, the German official history, Ludwig Boell (1951) wrote "... of the loss of levies, carriers, and boys (sic) [we could] make no overall count due to the absence of detailed sickness records". Paice wrote of a 1989 estimate of 350,000 casualties and a death rate of 1-in-7 people. Carriers were rarely paid and food and cattle were requisitioned from civilians; a famine caused by the subsequent food shortage and poor rains in 1917 led to another 300,000 civilian deaths in German East Africa. The conscription of farm labour in British East Africa and the failure of the 1917–1918 rains, led to famine and in September the 1918 flu pandemic reached sub-Saharan Africa. In British East Africa 160,000–200,000 people died, in South Africa there were 250,000–350,000 deaths and in German East Africa 10–20 percent of the population died of famine and disease; in sub-Saharan Africa, 1,500,000–2,000,000 people died in the flu epidemic.
- 200 Europeans and 2,500 Askari.
- 3,000 Europeans and 15,000 Askari.
- 115 Europeans and 1,168 Askari.
- 5,000 Europeans and 17,000 Askari.
- The exact number of irregulars in German service is unknown; the British War Office estimated that it was 12,000. Numbers of Ruga-Ruga in German service also tended fluctuate greatly due to the fact that they fought, left or deserted when they saw fit.
- According to Clodfelter, this includes 1,290 Askari and 739 Germans (100 officers); 874 Germans were also wounded including those captured.
- According to Clodfelter, 2,487 Askari and 2 Germans.
- According to Clodfelter, 2,847 Germans and 4,275 Askari.
- The proportions of African civilians who died of war-related causes are Kenya 30,000, Tanzania 100,000, Mozambique 50,000, Rwanda 15,000, Burundi 20,000 and Belgian Congo 150,000.
- The ship is still in service as the Liemba, plying the lake under the Tanzanian flag.
- In early November 1917, the German naval dirigible L.59 travelled over 4,200 mi (6,800 km) in 95 hours towards East Africa, but was recalled by the German admiralty before it arrived.
- The Lettow-Vorbeck Memorial marks the spot in Zambia.
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- Rutherford, Alan. Kaputala, 2nd edition, Hand Over Fist Press, 2014.
- The Zeppelin Airship Era
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