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 indeed, had to, for the army was preoccupied with providing security in the reserves until January 1955, and it was the only service capable of both psychologically influencing and inflicting considerable casualties on the Mau Mau fighters operating in the dense forests. Lack of timely and accurate intelligence meant bombing was rather haphazard, but almost 900 insurgents had been killed or wounded by air attacks by June 1954, and it did cause forest gangs to disband, lower their morale, and induce their pronounced relocation from the forests to the reserves. Contrary to that which is sometimes claimed, Lancaster bombers were