Afrika.
The name for the German forces fighting in Africa were called the Afrika Corp.
German East Africa ended in 1919.
German East Africa was created in 1885.
The German Empire gained control of a large area named German East Africa, comprising present-day Rwanda, Burundi and the mainland part of Tanzania
German South-West Africa was created in 1884.
German South-West Africa ended in 1915.
German East Africa Company was created in 1885.
After World War I, it was put under the control of South Africa and called South-West Africa. After gaining their independence in 1990, the country was renamed Namibia.
Assuming you mean: "....in Africa, before the end of WW I", the answer is 1) German South-West Africa (today's Namibia); 2) German East Africa (today's Tanzania) and 3) Cameroon. Germany also had a Protectorate in Africa, namely Togo.
German East Africa (German: Deutsch-Ostafrika) was a German colony in East Africa, including what is now Burundi, Rwanda and Tanganyika (the mainland part of present Tanzania).
Namibia (formerly a German colony named Deutsch Südwestafrika (German South West Africa)has Afrikaans, Oshiwambo and German as recognized regional languages.There are also large German speaking communities in South Africa. and Cameroon.
Nambia (formally German South West Africa) and Prior to World War I, Germany controlled more than 2.4 million square kilometers of African territory. German West Africa became Cameroon, Nigeria, Chad, Guinea, Ghana, Togo and the Central African Republic. German South West Africa became Namibia and German East Africa became Burundi, Kenya, Mozambique, Rwanda, Tanzania and Uganda