The modern military development of the British East and West African territories reached its highest level during World War II. Great Britain at that time put aside her standing policy of maintaining establishments sufficient only for colonial domestic needs and recruited forces for general use against Germany, Italy, and Japan.1 Building on a base provided by the Royal West African Frontier Force and the King's African Rifles of East and Central Africa, Britain recruited approximately 470,000 Africans during the war, including over 65,000 from the Gold Coast and 77,000 from Uganda; about 80 per cent of these were serving when the war ended. Although the majority enlisted in army infantry or service corps, tens of thousands served as artisans and technicians, and others in small naval and air establishments. Modern war requirements caused not only a restructuring of African colonial forces, but also forced considerable changes in military recruitment. The 'martial races' traditionally favoured by British officers had to be supplemented by large numbers of skilled and literate recruits from other African peoples; for example, the Ibo, Baganda, and Kikuyu. This rapid expansion of the forces also meant an increased need for British commissioned and non-commissioned officers, who were recruited from Great Britain as well as locally. The many different languages spoken by the new forces meant that simple English displaced Hausa in the west and, to a lesser degree, Swahili in the east, as the standard military language.