of
Force Publique troops upon their return from Tabora in 1917. The southern brigade commanded by
Colonel Frederik Valdemar Olsen advanced to Tabora following the
Tanganyika Railway (
Tanganjikabahn), which the Germans destroyed as they withdrew to the east. Tabora was an open plain surrounded by hills, which German
Maj. Gen. Wahle had used to build his defences; his forces included loyalist
Rwandan Indugaruga warriors. The southern brigade took control of the German railway station at
Usoke on 30 August, in response Wahle sent reinforcements from Tabora to Usoke by train. The German
Schutztruppen launched the counterattack on Usoke from 2 to 3 September, which was repelled by the Force Publique. On the 7th, General Wahle launched another counterattack on the train station of Usoke, this time a
naval gun was mounted on one of the railway wagons. Both sides suffered heavy losses, the train station was bombarded, the Force publique launched an attack, and the Germans were pushed back. When the last resistance in
Usoke (west of Tabora) was broken, the Belgians advanced to reach the German defences of Tabora at
Lulanguru on 8 September. The southern brigade led the offensive actions for the next 4 days, closing in on Tabora from the west. Wahle established his main positions at
Itaga, north of Tabora. From 10-12 September the northern brigade encountered heavy German resistance in the hills of Itaga, where they suffered considerable casualties. By this time Wahle's forces were reduced to 1.100 rifles and the desertion of his askari soldiers multiplied. On 16 September the Germans intercepted a letter from Crewe for Colonel
Philippe Molitor (Brigade Nord), which stated that the main offensive from the north was planned for the 19th. After heavy fighting, the German army retreated to the southeast, in three columns. The civilian authorities of Tabora surrendered to the troops of the
Force Publique on 19 September. ==Aftermath==