Lake Force (or Lakeforce) was a British field force stationed in the Uganda Protectorate on the west coast of Lake Victoria under the command of Brigadier-General Sir Charles Crewe in 1916, during the East African campaign of the World War I.
Over 40,000 loads were stockpiled there by 19 September, but Mwanza's value as a base was minimized by lack of porters to carry them southwards.
The area south of Mwanza was waterless and completely stripped of resources by the Germans.
A letter by Crewe intended for Lieutenant-Colonel Philippe François Joseph Molitor, commander of the Northern Brigade, and stating that the British assault on Tabora would begin on 19 September was on the 16th intercepted by the Germans, who then abandoned the town on the night of 18–19 September.
[1] Some of its Ugandan medics were sent to serve with the Uganda Field Ambulance in the 4th battalion of the King's African Rifles.