The founding government was a coalition of conservative parties: the Northern People's Congress led by Sir Ahmadu Bello, a party dominated by Muslim northerners, and the Igbo and Christian-dominated National Council of Nigeria and the Cameroons led by Nnamdi Azikiwe.  The opposition comprised the comparatively liberal Action Group, which was largely dominated by the Yoruba and led by Obafemi Awolowo. An imbalance was created in the polity as the result of the 1961 plebiscite. Southern Cameroons opted to join the Republic of Cameroon while Northern Cameroons chose to join Nigeria. The northern part of the country became larger than the southern part. 