In World War I British, French, and Belgian troops drove the Germans into exile, beginning a period of British rule in two small portions and French rule in the remainder of the territory. These League of Nations mandates (later United Nations [UN] trusts) were referred to as French Cameroun and British Cameroons.
The British trust territory consisted of a strip of land bisected by the Benue River along the eastern border of Nigeria. British rule was a period of neglect, and this, coupled with the influx of numerous Nigerians, caused great resentment. The old German plantations were eventually united into a single parastatal (government-owned enterprise), the Cameroon Development Corporation, and were the mainstay of the economy. Development also occurred in agriculture, especially in the latter years of British rule. The production of cacao, coffee, and bananas grew rapidly.