Nigeria is the most populous country in Africa and the seventh most populous in the world, often referred to as the "Giant of Africa." Located on the Gulf of Guinea in West Africa, it shares borders with Benin to the west, Chad and Cameroon to the east, and Niger to the north. The geography is highly diverse, ranging from the mangrove swamps and tropical rainforests of the south to the central Jos Plateau and the arid Savannah and Sahel plains of the north. The country is split into two main sections by the Niger and Benue rivers, which come together in a distinctive "Y" shape before emptying into the massive Niger Delta. This delta is one of the world's largest wetlands and is the center of the country’s petroleum industry.

The political structure of Nigeria is a federal presidential republic, modeled largely after the United States system. It is composed of 36 states and the Federal Capital Territory (FCT), which houses the capital city, Abuja. The President serves as both the head of state and the head of government, leading the executive branch. The legislative branch is the bicameral National Assembly, consisting of the Senate and the House of Representatives. Nigeria’s modern political history has been marked by a transition from British colonial rule (gaining independence in 1960) through several military coups and a civil war, eventually stabilizing into the "Fourth Republic" in 1999. This current democratic era has seen the longest period of uninterrupted civilian rule in the nation's history.

Nigeria possesses the largest economy in Africa by nominal GDP, driven primarily by its vast petroleum and natural gas reserves. It is a leading member of OPEC and the largest oil producer on the continent. The oil and gas sector accounts for the majority of foreign exchange earnings and government revenue, with the primary extraction sites located in the Niger Delta and offshore. However, in recent years, there has been a significant push toward economic diversification. The telecommunications, financial services, and manufacturing sectors have grown rapidly, particularly in the urban hubs of Lagos and Kano. Despite its mineral wealth, the economy remains sensitive to global oil price fluctuations and faces challenges regarding infrastructure development and electricity distribution.