Which ethnic groups made up most of the Mau Mau movement?

The Mau Mau movement was a militant anti-colonial organization that originated primarily among the Kikuyu people of Kenya during the 1950s. While the movement's membership was predominantly Kikuyu, it also included participants from other ethnic groups, most notably the Embu and the Meru.123

The movement emerged as a response to grievances regarding land dispossession, economic inequality, and political exclusion under British colonial rule. Although the Kikuyu were the primary participants, it is important to note that support was not universal; not all Kikuyu or other Indigenous Kenyans backed the movement, and some individuals remained loyal to the British colonial government.123