In international relations, regional power, since the late 20th century has been used for a sovereign state that exercises significant power within its geographical region. States that wield unrivaled power and influence within a region of the world possess regional hegemony.
Leaders of most regional powers during the 2015 G-20 Summit
Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean. It covers an area of 923,769 square kilometres (356,669 sq mi), and with a population of over 230 million, it is the most populous country in Africa, and the world's sixth-most populous country. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west. Nigeria is a federal republic comprising 36 states and the Federal Capital Territory, where the capital, Abuja, is located. The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the largest in Africa.
Nok sculpture, terracotta
Royal Benin ivory mask, one of Nigeria's most recognized artifacts. Benin Empire, 16th century.
Depiction of Benin City by a Dutch illustrator in 1668. The wall-like structure in the centre probably represents the walls of Benin, housing the Benin bronze decorated historic Benin City Palace.
The Lord and Lady Lugard, 1908