Call by the commander-in-chief of the South African Union troops, General Louis Botha, announces that in German Southwest Africa the means of payment will become invalid. / Photographer: Scherl

Announcement of the prohibition to leave the residence of the civilian population / Photographer: Scherl

Black auxiliary troops of the Schutztruppe accompany a carrier troop in the German colony East Africa / Photographer: Scherl

Askari soldiers at a shooting range in German East Africa / Photographer: Scherl

Coloured soldiers of a company of the German Schutztruppe, so-called Askari, marching out in the first days of the First World War / Photographer: Scherl

African soldiers of a German colonial army from the D e u t s c h - O s t a f r i k a colony. Undated recording. / Photographer: Scherl

Two soldiers, who served under the command of Lettow-Vorbecks, on deck chairs in an improvised camp from the first war time / Photographer: Scherl

Soldier of the cavalry on a horse in the steppe in German-Southwest-Africa in the First World War / Photographer: Scherl

Public appeal to war volunteers in German Southwest Africa in the First World War / Photographer: Scherl

Emergency money as a substitute for missing legal tender in the colony of German South-West Africa during the First World War / Photographer: Scherl

Emergency money as replacement for missing legal tender in the colony Deutsch-Südwestafrika in the First World War / Photographer: Scherl

A captive English colonel in the colony German South West Africa in the First World War / Photographer: Scherl

Announcement by Lieutenant von Heyderbreck about an extended invasion of German South-West Africa / Photographer: Scherl

Colonial troops with carrier column on the march in D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

The surveying ship 'Seagull' was hit in the bay of Dar es Salaam and lies down on its side before sinking. / Photographer: Scherl

10,5 cm gun of the cruiser 'Königberg' mounted on a mobile carriage. / Photographer: Scherl

Askari and Rugaruga on Kiomboni East (Rufiji Estuary) in the colony of D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

Celebration at the foot of Kilimanjaro after arrival of the first victory news. / Photographer: Scherl

A gun from the cruiser 'Königsberg' in position at the mouth of the Rufidji in German East Africa in the First World War / Photographer: Scherl

Houses in ruins in Dar es Salaam after the firing of English ship guns / Photographer: Scherl

Without the support of his native troops, the so-called Askaris, the German commander in East Africa, the famous General von Lettow-Vorbeck, could never have endured until the end of the war in 1918. The photo shows one of these soldiers from the German Schutztruppe with the imperial flag in his hand. Undated recording. / Photographer: Scherl

African soldiers of the German Schutztruppe, so-called Askaris, have occupied a ditch in the area of Kilimanjaro in the German colony of East Africa / Photographer: Scherl

Landing of the pilot Trück, who was the first to land in the steppe of German Southwest Africa in the First World War. / Photographer: Scherl

Supporting column of the Schutztruppe on the march through D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

Soldiers of the Schutztruppe and their military transport goods in the colony D e u t s c h - O s t a f r i k a during World War I / Photographer: Scherl

German soldiers and Askari of the protective group in defensive position in D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

Askaris and German officers of the German Schutztruppe in a battle position near Kilimanjaro / Photographer: Scherl

German Schutztruppe in the Mahenge combat area resting on a harvested millet field. In the background characteristic formations of the Upogora Mountains / Photographer: Scherl

Colonial troops with carrier column on the march in Deutsch-Ostafrika in the First World War / Photographer: Scherl

Soldiers in front of an armoured car of the Uganda Railway in British East Africa / Photographer: Scherl

German soldiers in the jungle with a machine gun. The photo was taken by a photographer in captivity. / Photographer: Scherl

German soldiers (from left to right: Senior Physician Dr. Wolf, Lieutenant Baldamus, Lieutenant von Schappuis) in front of the customs house in Bagamojo with bullet hole in the colony of D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

Soldiers of the German Schutztruppe felling trees in the fighting area Mahenge in D e u t s c h - O s t a f r i k a / Photographer: Scherl

Colony Deutsch-Südwestafrika in the First World War: A German prison camp in Aus. / Photographer: Scherl

Bedingungen der Übergabe der Schutztruppe des deutsch-südwestafrikanisdchen Schutzgebietes, geschlossen am 9. Juli 1915. / Fotograf: Scherl

Landing of the Portuguese-African troops from Portuese-East Africa coming over sea at Kilwa, in the colony D e u t s c h - O s t a f r i k a / Photographer: Scherl

Embarkation of loads for an officer patrol at Spekegolf, a bay at Lake Victoria / Photographer: Scherl

Exercise of the German Schutztruppe with a dismountable barge on the pond in Mahenge / Photographer: Scherl

Posten with homemade gun in D e u t s c h - O s t a f r i k a during the First World War / Photographer: Scherl

Motorcyclist of the Schutztruppe on a liaison trip German East Africa in the First World War / Photographer: Scherl