The South African Institute for Security Studies wrote when Moi was still in power: "the Kenyan armed forces' reputation as a politically neutral establishment has been undermined by irrefutable evidence of tribal favouritism in the appointment of key posts. In the military (and also the Police and GSU), there is a virtual monopoly of President Moi's ethnic group, the Kalenjin, in the top brass. Of 18 military generals, at least a third are Kalenjin; of 20 brigadiers, 7 are Kalenjin—an ethnic group that accounts for only a tenth of Kenya's population. This obviously works to the disadvantage, especially, of the Kikuyu and the Luo."