Operation Anvil (Mau Mau Uprising) the reserves. The "Grey" grade was made up of prisoners believed to be passive Mau Mau sympatherisers though for whom strong evidence suggesting their true loyalties was lacking. The last category, "Black", was reserved for detainees identified by the hooded informers or the Special Branch of the Kenya Police as potentially violent insurgents or terrorists. A few may have been prosecuted by the government, but most were funneled through the "Pipeline", a system of work camps, decreasing in brutality until an individual was "re-educated" and deemed safe to release on a native reserve. Operation Anvil (Mau Mau Uprising) Operation Anvil
Mau Mau Uprising noting the similarity between such analysis and the "simplistic" earlier studies of Mau Mau. This earlier work cast the Mau Mau war in strictly bipolar terms, "as conflicts between anti-colonial nationalists and colonial collaborators". Caroline Elkins' 2005 study, "Imperial Reckoning", has met similar criticism, as well as being criticised for sensationalism. Broadly speaking, throughout Kikuyu history, there have been two traditions: "moderate-conservative" and "radical". Despite the differences between them, there has been a continuous debate and dialogue between these traditions, leading to a great political awareness among the Kikuyu. By 1950, these differences, and the impact of colonial rule, had