Mau Mau Uprising attempt to eliminate Mau Mau's presence within Nairobi in one fell swoop. 25,000 members of British security forces under the control of General George Erskine were deployed as Nairobi was sealed off and underwent a sector-by-sector purge. All native Kenyans were taken to temporary barbed-wire enclosures, whereafter those who were not Kikuyu, Embu or Meru were released; those who were remained in detention for screening. Whilst the operation itself was conducted by Europeans, most suspected members of Mau Mau were picked out of groups of the Kikuyu-Embu-Meru detainees by a native Kenyan informer. Male suspects were then taken off for
Mau Mau Uprising used stolen weapons such as guns, as well as weapons such as machetes and bows and arrows in their attacks. In a few limited cases, they also deployed biological weapons. Women formed a core part of the Mau Mau, especially in maintaining supply lines. Initially able to avoid the suspicion, they moved through colonial spaces and between Mau Mau hideouts and strongholds, to deliver vital supplies and services to guerrilla fighters including food, ammunition, medical care, and of course, information. An unknown number also fought in the war, with the most high-ranking being Field Marshal Muthoni. The British and international