Mau Mau Uprising remain collected, balanced and dispassionate". He also reminded the governor that "If we are going to sin", he wrote, "we must sin quietly." The Chuka Massacre, which happened in Chuka, Kenya, was perpetrated by members of the King's African Rifles B Company in June 1953 with 20 unarmed people killed during the Mau Mau uprising. Members of the 5th KAR B Company entered the Chuka area on 13 June 1953, to flush out rebels suspected of hiding in the nearby forests. Over the next few days, the regiment had captured and executed 20 people suspected of being Mau Mau fighters
Operation Anvil (Mau Mau Uprising) in the process. Erskine intended on relocating all Kikuyu, Embu, and Meru people from Nairobi, but the colonial government rejected the plan, citing potential harm to the local economy and administration. The operation was based on one British security forces had conducted in Tel Aviv, Palestine. Its legality was assured by the Emergency Regulations and the Control of Nairobi Regulations of 1954, the latter of which permitted the colonial governor to issue "Evacuation Orders" to remove and detain individuals from the city so they could be screened for connections with the Mau Mau. Four battalions were earmarked for the action.