Answer:
They thought they would be granted more rights and opportunities.
Step-by-step explanation:
The African Front of the First World War comprises several geographically distinct campaigns against the German colonies spread across Africa: Kamerun, Togoland, West German Africa and German East Africa.
The British Empire, with almost complete control of the world's oceans, had the capacity and resources to conquer the German colonies when the war broke out. Most of the German colonies in Africa did not have good defenses and were almost surrounded by colonies of their enemies, the United Kingdom, France, Belgium and, later in the war, Portugal.
The small Togoland colony (present-day Togo and part of Ghana), which had no military but police forces, was almost immediately conquered (August 26, 1914) by British forces from the British Gold Coast (present-day Ghana) and a small French force of Dahomey.
German troops in Kamerun (present-day Cameroon and part of northeastern Nigeria) (some 1,000 German soldiers and 3,000 Africans) fought fiercely against the British invaders from Nigeria (who had little success), French from Chad, and Belgian-French from the Congo, which in September conquered Limbe on the coast, and, with the help of British and French cruisers, conquered the colonial capital, Douala, in September 1914. The center of the German resistance was then Yaoundé, which was attacked by the Francois. Belgians and captured, but the governor and many soldiers retreated to the neutral Spanish Guinea. The fight ended with the surrender of the last German forces (Schutztruppe) in February 1916.