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 series of major economic, military and penal initiatives. The second stage had three main planks: a large military-sweep of Nairobi leading to the internment of tens of thousands of the city's suspected Mau Mau members and sympathisers (see "Operation Anvil" below); the enacting of major agrarian reform (the Swynnerton Plan); and the institution of a vast villagisation programme for more than a million rural Kikuyu (see below). In 2012, the UK government accepted that prisoners had suffered "torture and ill-treatment at the hands of the colonial administration". The harshness of the British response was inflated by two factors. First, the