Introduction
How is the Military in Nigeria and how does it work to maintain Sucity and fight terrorism? In terms of Military and security forces, we have the Armed Forces of Nigeria (AFN): Army, Navy (includes Coast Guard), Air Force

Ministry of Interior: Nigeria Security and Civil Defense Corps (NSCDC); Ministry of Police Affairs: Nigeria Police Force (NPF) (2024).
In Nigeria, the Nigerian military is sub-Saharan Africa’s largest and regarded as one of its most capable forces; the military's primary concerns are internal and maritime security, and it faces a number of challenges; the Army is deployed in all 36 of the country's states; in the northeast, it is conducting counterinsurgency/counterterrorist operations against the Boko Haram (BH) and Islamic State of Iraq and ash-Sham in West Africa (ISIS-WA) terrorist groups, where it has deployed as many as 70,000 troops at times and jihadist-related violence has killed an estimated 35-40,000 people, mostly civilians, since 2009; in the northwest, it faces threats from criminal gangs--locally referred to as bandits--and violence associated with long-standing farmer-herder conflicts, as well as BH and ISIS-WA terrorists; bandits in northwestern Nigeria are estimated to number as many as 30,000 and violence there has killed approximately 14,000 people since the mid-2010s; the military also continues to protect the oil industry in the Niger Delta region against militants and criminal activity; since 2021, additional troops and security forces have been deployed to eastern Nigeria to quell renewed agitation for a state of Biafra (Biafra seceded from Nigeria in the late 1960s, sparking a civil war that caused more than 1 million deaths)

the Navy is focused on maritime security in the Gulf of Guinea; since 2016, it has developed a maritime strategy, boosted naval training and its naval presence in the Gulf, increased participation in regional maritime security efforts, and acquired a number of new naval platforms, including offshore and coastal patrol craft, fast attack boats, and air assets

the Nigerian military traces its origins to the Nigeria Regiment of the West African Frontier Force (WAFF), a multi-regiment force formed by the British colonial office in 1900 to garrison Great Britain's West African colonies; the WAFF (the honorary title "Royal" was added later) served in both World Wars; in 1956, the Nigeria Regiment of the Royal WAFF was renamed the Nigerian Military Forces (NMF) and in 1958, the colonial government of Nigeria took over control of the NMF from the British War Office; the Nigerian Armed Forces were established following independence in 1960 (2024)
Security and military information of Nigeria
Military and security service personnel strengths information varies; approximately 135,000 active-duty armed forces personnel (100,000 Army; 20,000 Navy/Coast Guard; 15,000 Air Force); approximately 80,000 Security and Civil Defense Corps; approximately 370,000 police (2023)
Military equipment inventories and acquisitions the military's inventory consists of a wide variety of imported weapons systems of Chinese, European, Middle Eastern, Russian (including Soviet-era), and US origin; the military is undergoing a modernization program, and in recent years has received equipment from a range of suppliers, including Brazil, China, France, Italy, Russia, Turkey, and the US; Nigeria is also developing a defense-industry capacity, including small arms, armored personnel vehicles, and small-scale naval production (2024)
Military service age and obligation 18-26 years of age for voluntary military service for men and women; no conscription (2023).
Military deployments 190 Sudan/South Sudan (UNISFA) (2024). note: Nigeria has committed an Army combat brigade (approximately 3,000 troops) to the Multinational Joint Task Force (MNJTF), a regional counter-terrorism force comprised of troops from Benin, Cameroon, Chad, and Niger; MNJTF conducts operations against Boko Haram and other terrorist groups operating in the general area of the Lake Chad Basin and along Nigeria's northeast border; national MNJTF troop contingents are deployed within their own country territories, although cross‐border operations are conducted periodically
Military expenditures
Military Expenditures 2023 0.7% of GDP (2023 est.)
Military Expenditures 2022 0.6% of GDP (2022 est.)
Military Expenditures 2021 0.7% of GDP (2021 est.)
Military Expenditures 2020 0.6% of GDP (2020 est.)
Military Expenditures 2019 0.5% of GDP (2019 est.)
Terrorism
In Nigeria, the different Terrorist group(s) inlcude: Boko Haram; Islamic State of Iraq and ash-Sham – West Africa; Jama’atu Ansarul Muslimina Fi Biladis-Sudan (Ansaru)
All Important Facts about Nigeria

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Nigeria is found in Western Africa