The major factor influenced the formulation of Nigerian foreign policy in the First Republic was

The major factor that influenced the formulation of Nigerian foreign policy in the First Republic was the colonial legacy. This means that the policies of the colonial rulers and their impact on Nigeria's political, economic, and social structures shaped the way Nigeria interacted with other countries in the international system. Nigeria's foreign policy was influenced by the desire to assert its independence and establish its sovereignty in the international arena. Additionally, economic considerations played a significant role in Nigeria's foreign policy, as the country sought to promote its economic interests through trade and investment partnerships with other countries. However, the colonial legacy remained the dominant factor in shaping Nigeria's foreign policy in the First Republic.