German East Africa was a German colony in the African Great Lakes region, which included present-day Burundi, Rwanda, the Tanzania mainland, and the Kionga Triangle, a small region later incorporated into Mozambique. From Wikipedia
President Steinmeier seeks collective acknowledgement of Germany's violent past, committed to finding and returning abducted human remains, and promises to increase awareness of the atrocities back home; however, no explicit mention of reparations during the landmark visit.