Nigeria

=== Military ===
{{main|Nigerian Armed Forces}}
[[File:ZSU-23-4_Shilka_01.jpg|thumb|[[Nigerian Army]] self-propelled anti-aircraft gun]]
The [[Nigerian Armed Forces]] are the [[Military|combined military forces]] of Nigeria. It consists of three uniformed service branches: the [[Nigerian Army]], [[Nigerian Navy]], and [[Nigerian Air Force]]. The [[President of Nigeria]] functions as the [[commander-in-chief]] of the armed forces, exercising his [[Constitution of Nigeria|constitutional authority]] through the Ministry of Defence, which is responsible for the management of the military and its personnel. The operational head of the AFN is the [[Chief of the Defence Staff (Nigeria)|Chief of the Defence Staff]], who is subordinate to the [[Defence Minister of Nigeria|Nigerian Defence Minister]]. With a force of more than 223,000 active personnel, the Nigerian military is one of the largest uniformed combat services in Africa.<ref>{{cite web |title=Armed forces personnel, total – Data |url=http://data.worldbank.org/indicator/MS.MIL.TOTL.P1 |access-date=24 January 2017}}</ref>

[[File:Nigerian Air Force Mil Mi-24V Iwelumo-1.jpg|thumb|[[Nigerian Air Force]] attack helicopter]]

Nigeria has 143,000 troops in the armed forces (army 100,000, navy 25,000, air force 18,000) and another 80,000 personnel for "gendarmerie & paramilitary" in 2020, according to the [[International Institute for Strategic Studies]].<ref name=":8">{{cite book |last=The International Institute for Strategic Studies (IISS) |title=The Military Balance 2022 |publisher=Taylor & Francis |year=2022 |isbn=9781032279008 |location=London}}</ref> Nigeria spent just under 0.4 per cent of its economic output, or US$1.6 billion, on its armed forces in 2017.<ref>3_Data for all countries from 1988 to 2017 as a share of GDP.pdf (sipri.org)</ref><ref>1_Data for all countries from 1988 to 2017 in constant (2016) USD.pdf (sipri.org)</ref> For 2022, US$2.26 billion has been budgeted for the Nigerian armed forces, which is just over a third of [[Belgium]]'s [[defence budget]] (US$5.99 billion).<ref name=":8" />