Mau Mau Uprising 'Our Grandfathers' (—Twenda kwikala ta maau mau maitu, tuithye ngombe to Maau mau maitu, nundu nthi ino ni ya maau mau maitu). Some have argued that it is an acronym for "Mzungu Aende Ulaya Mwafrica Apate Uhuru". Others have claimed that it was coined from the term "UMA UMA", a communication code used by the guerrillas. Dominated by the Kikuyu people, Meru people and Embu people, the "Mau Mau" also comprised units of Kamba and Maasai peoples who fought against the white European colonist-settlers in Kenya, the British Army, and the local Kenya Regiment (British colonists, local auxiliary militia, and
Mau Mau Uprising Kenyans suspected of supporting Mau Mau rebels were finally released in April 2012. On 20 October 1952, Governor Baring signed an order declaring a State of Emergency. Early the next morning, Operation Jock Scott was launched: the British carried out a mass-arrest of Jomo Kenyatta and 180 other alleged Mau Mau leaders within Nairobi. Jock Scott did not decapitate the movement's leadership as hoped, since news of the impending operation was leaked. Thus, while the moderates on the wanted list awaited capture, the real militants, such as Dedan Kimathi and Stanley Mathenge (both later principal leaders of Mau Mau's forest