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 movement general failure to understand and respect Samoan culture also sowed the seeds for a revitalised resistance to colonial rule. Logan was replaced by Colonel Robert Tate. The groundswell of support among Samoans for the Mau came from the leadership of Samoan "matai", the heads of families in Samoa's traditional socio-political structure. Family and chiefly title connections, a central part of Samoan culture, were used to harness support. The success of the Mau in gathering national support showed that "fa'a Samoa" was still strong despite colonialism. Samoans of mixed parentage, facing discrimination from both cultures but with the advantage of cross-cultural