这个团伙的成员估计有数千人，主要从肯尼亚人数最多、同时也是最强大的族裔吉库尤族中吸收贫穷的年轻男子。
The group 's members , estimated in the thousands , are largely drawn from poor , young , men from the Kikuyu ethnic group , Kenya 's largest and most powerful .
吉库尤族