Nigeria

Nigeria is Africa's most populous state and its largest economy, a federal republic of more than 220 million people governed from Abuja under President Bola Tinubu, who took office in May 2023 following elections that the international community judged broadly credible despite documented irregularities and localized violence. The country's federal architecture traces directly to the British amalgamation of 1914, which stitched together the Sokoto Caliphate and the Borno and Kano kingdoms of the north with the Oyo and Benin successor polities of the southwest and the more fragmented city-states of the southeast — a cartographic decision whose ethnic and religious fault lines have never fully closed. The Biafran war of 1967–1970 killed over a million people and produced the generation of officers — Obasanjo, Babangida, Buhari — who cycled through power for the following four decades and whose networks still shape Nigerian politics today. Military rule ran until 1999; durable civilian governance is, by historical measure, a recent experiment.

What makes Nigeria inescapable for any serious reading of African affairs is the intersection of scale and fragility. It holds the continent's largest oil reserves and produces roughly 1.3 million barrels per day, yet petroleum revenue has funded patronage systems more reliably than public infrastructure. The northeast remains contested between the Nigerian Armed Forces and jihadist factions, principally Boko Haram's splinter groups and the Islamic State West Africa Province. Criminal banditry across the northwest and secessionist pressure in the Igbo southeast compound the security picture. Nigeria does not merely represent West Africa — it anchors it, and its instabilities carry proportional regional weight.

Nigeria occupies 923,768 square kilometres of West Africa, centred at 10°N, 8°E, with the Gulf of Guinea forming its southern boundary between Benin to the west and Cameroon to the east. Of that total, 910,768 square kilometres is land; 13,000 square kilometres is water. The scale is worth stating plainly: slightly more than twice the size of California, or roughly six times the size of Georgia. A coastline of 853 kilometres gives access to the Atlantic, against which Nigeria asserts a 12-nautical-mile territorial sea, a 200-nautical-mile exclusive economic zone, and a continental shelf extending to 200 metres depth or the limit of exploitation.

The land boundary runs to 4,477 kilometres in total. Cameroon accounts for the largest share at 1,975 kilometres; Niger follows at 1,608 kilometres; Benin contributes 809 kilometres; Chad, at the country's northeastern extremity, contributes only 85 kilometres. That Chadian border is the shortest but arguably the most consequential for understanding Nigeria's northern water geometry, where the Lake Chad Basin aquifer and the shared, seasonally variable surface of Lake Chad — ranging between 10,360 and 25,900 square kilometres depending on season and year — define a hydrology Nigeria shares with Niger, Chad, and Cameroon simultaneously.

Terrain moves in predictable gradients from south to north. Southern lowlands give way to central hills and plateaus; the southeast rises into mountains; the north opens into plains. The highest point, Chappal Waddi, reaches 2,419 metres in the far east; mean elevation across the country is 380 metres. The Niger River, at 4,200 kilometres one of Africa's great waterways, meets the Atlantic through its mouth in Nigeria, draining a watershed of 2,261,741 square kilometres that begins in Guinea and passes through Mali, Niger, and Benin before reaching the delta.

Climate follows the same south-to-north gradient as terrain: equatorial conditions in the south, tropical across the central belt, arid in the north. Periodic drought and flooding are the two principal natural hazards, operating at opposite ends of the country's hydrological range. Irrigated land amounted to 2,188 square kilometres as of 2017, a modest figure given that agricultural land constitutes 76.2 percent of total area — 40.5 percent arable, 8.1 percent permanent crops, 27.6 percent permanent pasture. Forest covers 19.1 percent. The resource inventory beneath this landscape is extensive: natural gas, petroleum, tin, iron ore, coal, limestone, niobium, lead, zinc, and the arable land itself. The Lullemeden-Irhazer Aquifer System, shared with neighbouring Sahelian states, underwrites groundwater access across the north in a region where surface water is unreliable by definition.

Nigeria is a federal presidential republic organized across 36 states and the Federal Capital Territory of Abuja, which replaced Lagos as the seat of government in 1991. The territory's name derives from a nearby settlement called Suleja — itself named after Abu Ja, "Abu the Red," in 1828 — a detail that anchors the capital's geography in the mid-nineteenth-century political landscape of the north-central region. Independence from the United Kingdom came on 1 October 1960, the date marked annually as the national holiday.

The constitutional order rests on the 1999 document, adopted 5 May and effective 29 May of that year — the latest in a line of several prior constitutions, most of which were suspended or replaced during periods of military governance. Amendment requires at least two-thirds majorities in both chambers of the National Assembly and ratification by at least two-thirds of the state Houses of Assembly; changes touching fundamental rights, the procedures for amendment itself, or the creation of a new state demand four-fifths majorities in the National Assembly. The threshold is deliberately high, reflecting the political settlement that ended military rule.

Legislative authority rests in the bicameral National Assembly. The Senate holds 109 directly elected seats; the House of Representatives, 360. Both chambers were last renewed on 25 February 2023 for four-year terms expiring at the next scheduled election in February 2027. The All Progressives Congress commands outright majorities in both chambers — 59 Senate seats and 180 in the House — with the People's Democratic Party as the principal opposition, holding 36 and 116 seats respectively. The Labour Party, which mounted a significant presidential challenge in 2023, secured 8 Senate seats and 35 in the House; the New Nigeria Peoples Party holds 19 House seats. Women constitute 3.7 percent of Senate membership and 4.2 percent of the House, among the lowest figures in West Africa's larger legislatures.

The legal system is tripartite: English common law inherited from British administration, Islamic law operative in twelve northern states, and customary traditional law. Nigeria accepts ICJ compulsory jurisdiction with reservations and accepts the jurisdiction of the International Criminal Court. Citizenship transmits by descent — at least one parent must be Nigerian — and naturalization requires fifteen years of residency; dual citizenship is recognized.

In 2024, Parliament voted to restore the national anthem used between independence and 1978. "Nigeria, We Hail Thee," with lyrics by Lillie Jean Williams and music by Frances Berda, supplanted the anthem adopted at the end of that earlier period, returning the country symbolically to the precise register of its founding compact.

Nigeria's economy registered a real GDP of $1.318 trillion (PPP, 2021 dollars) in 2024, with nominal output at the official exchange rate reaching $187.76 billion. Real GDP growth held at 3.4 percent in 2024, marginally above 2.9 percent in 2023 and 3.3 percent in 2022 — a pattern of modest, consistent expansion. Per capita real GDP stood at $5,700 in 2024, a figure that has moved only marginally over the three preceding years and that sits against a poverty rate of 40.1 percent of the population (2018 estimate). The Gini index of 35.1 (2018) and the household income distribution — with the lowest decile capturing 2.9 percent of income and the highest decile capturing 26.7 percent — define an economy where aggregate growth and distributed welfare diverge substantially.

Services account for 47 percent of GDP by sector, industry for 29.6 percent, and agriculture for 20.4 percent (2024). The industrial base spans crude oil, natural gas, coal, tin, and columbite extraction alongside manufacturing in cement, textiles, chemicals, fertilizers, and food products; industrial production grew 2.4 percent in 2024. Agriculture, anchored by cassava, yams, maize, oil palm fruit, and rice as leading crops by tonnage, remains the dominant employer in rural areas and absorbs 59.3 percent of average household expenditure on food — a ratio that reflects both subsistence patterns and the acute exposure of household finances to food price movements.

The labor force reached 113.35 million in 2024. The headline unemployment rate was 3.0 percent, with youth unemployment at 5.1 percent overall and 6.5 percent among women aged 15–24. Export commodities are led by crude petroleum and natural gas, with gold, fertilizers, and cocoa beans rounding out the top five. Total goods and services exports reached $57.536 billion in 2024, against imports of $57.73 billion, producing a near-balanced trade position. The current account surplus widened sharply, from $1.019 billion in 2022 to $6.423 billion in 2023 and $17.215 billion in 2024 — the remittances figure explains much of this movement, having risen from 4.2 percent of GDP in 2022 to 11.3 percent in 2024. The United States, Spain, France, the Netherlands, and India absorb the top shares of Nigerian exports; China alone supplies 26 percent of imports, followed by Singapore at 14 percent and Belgium at 8 percent.

The naira depreciated sharply across the period under review, moving from 425.979 per US dollar in 2022 to 645.194 in 2023 and 1,478.965 in 2024. Inflation measured by CPI followed the same trajectory: 18.8 percent in 2022, 24.7 percent in 2023, and 33.2 percent in 2024. Foreign exchange and gold reserves rose to $38.612 billion by end-2024, up from $32.035 billion in 2023. External debt stood at $45.009 billion in present-value terms in 2023, and the most recent public debt figure on record places sovereign debt at 19.6 percent of GDP (2016). The 2019 budget recorded revenues of $37.298 billion against expenditures of $59.868 billion — a structural gap that crude petroleum and gas receipts have historically been called upon to close without fully doing so.

Nigeria's armed forces number an estimated 140,000 active personnel as of 2025, drawn entirely from voluntary service: men and women between 18 and 25 years of age are eligible, and no conscription mechanism exists. The absence of a draft places the full burden of recruitment and retention on institutional incentives alone.

Defence expenditure has held at approximately 0.6 percent of GDP across 2020 through 2024, with a modest rise to 0.7 percent in 2023 before returning to the baseline. At that level, Nigeria sustains one of the larger standing armies in sub-Saharan Africa on a budget that ranks among the continent's lower shares of national output — a structural constraint that shapes equipment, readiness, and operational tempo in equal measure.

External deployments in 2025 are spread across three theatres. Roughly 180 personnel serve under UNISFA in the Sudan and South Sudan mission. Two separate ECOWAS commitments account for approximately 200 troops in The Gambia and 150 in Guinea-Bissau. These figures are modest relative to total force size, but they represent sustained institutional obligations across West Africa and the Horn simultaneously.

The most operationally demanding commitment is the Multinational Joint Task Force. Nigeria has pledged an army combat brigade of approximately 3,000 troops to the MNJTF, a coalition that also draws forces from Benin, Cameroon, Chad, and Niger. The Task Force's mandate covers counter-terrorism operations against Boko Haram and affiliated groups across the Lake Chad Basin and along Nigeria's northeastern frontier. Under the framework's standard arrangement, national contingents operate within their own territorial boundaries; cross-border operations occur periodically but remain the exception rather than the rule. Nigeria's northeastern campaigns trace their organised regional dimension to the reconstitution of the MNJTF under African Union authorisation in 2015, when the scale of Boko Haram's territorial control compelled a multilateral response. That precedent established the coalition architecture that remains operative today.