A recurrent problem of Nigerian federalism is

A recurrent problem of Nigerian federalism is national unity. Nigeria is a diverse country with over 250 ethnic groups, each with its own language and culture. This diversity has often led to conflicts and tensions among the various groups, especially between the major ethnic groups such as the Hausa-Fulani, Yoruba, and Igbo. The struggle for power and resources has also been a major source of tension. These conflicts have often resulted in violence, such as the Biafran war in the late 1960s, and have made it difficult for the country to achieve national unity. The federal system of government, which grants significant powers to the states, has also been a source of tension, with some states feeling marginalized or disadvantaged in terms of resource allocation and representation at the federal level. The challenge of promoting national unity and addressing the concerns of all groups remains a major challenge for Nigerian federalism.