In October 1896, a squadron of "Deutsche Schutztruppe" forces erected a camp on Mount Meru, near the mission station that King Matunda was having built. A night battle between local people and the German forces resulted in the deaths of at least five civilians who worked for the mission station, including five Chagga (Karava, Mrioa, Kalami and two others whose names are unknown to us) and two Eastern European Leipzig Mission missionaries, Ewald Ovir and Karl Segebrock. The deaths of Ovir and Segebrock were then used as an excuse by the "Deutsche Schutztruppe" to brutally attack the Wameru and Ilarusa people

2021 Leipzig Mission commemorated the 125th year of the so-called "Aker killings" with an international online symposium. This publication documents the presentations.