Original sentence: In addition, the treaty established the German sphere of interest in German South-West Africa (now Namibia) and settled the borders between German Togoland and the British Gold Coast Colony and German Cameroon and British Nigeria
Edited sentence: In addition, the treaty established the German sphere of interest in German South-West Africa (now Namibia) and settled the borders between German Togoland and the British Gold Coast Colony, and German Cameroon and British Nigeria