During the war about 100,000 people from Tanganyika joined the Allied forces. and were part of the 375,000 British colonial troops who fought against the Axis forces. Tanganyikans fought in units of the King's African Rifles and fought in the East African Campaign in Somalia and Abyssinia against the Italians, in Madagascar against the Vichy French during the Madagascar Campaign, and in Burma against the Japanese during the Burma Campaign. Tanganyika became an important source of food and Tanganyika's export income greatly increased from the pre-war years of the Great Depression. However, despite the additional income, the war caused inflation within the country.