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TheDefence Intelligence Agency (DIA), is the primary military intelligence agency of Nigeria. The DIA was established in 1986 to provide an efficient system of obtaining military intelligence for theNigerian Armed Forces andMinistry of Defence.^[1] The DIA promotes Nigeria's Defence Policy, enhances military cooperation with other countries, protects the lives of Nigerian citizens, and maintains the territorial integrity of Nigeria. The DIA is headed by theChief of Defence Intelligence (CDI) who is appointed by thePresident of Nigeria.

In June 1986, thenpresident, generalIbrahim Babangida issued Decree Number 19, dissolving theNational Security Organization (NSO) and restructuring Nigeria's security services into three separate entities under the Office of the Co-ordinator of National Security.^[2]

• TheState Security Service (SSS) was made responsible for domestic intelligence, with Director GeneralIsmaila Gwarzo and Deputy Director Lt. Col.A.K. Togun.
• TheNational Intelligence Agency (NIA) handled external intelligence and counterintelligence.
• The DIA was tasked with military-related intelligence outside and inside Nigeria

The Defence Intelligence College (DIC) was established by Decree 19 of 1986 as a training arm of the Defence Intelligence Agency (DIA). Since then, it has grown to become a Regional Centre of Excellence; especially within theEconomic Community of West African States (ECOWAS).^[3][4]

• http://www.dia.gov.ng/Archived 2023-08-06 at theWayback Machine
• https://fas.org/irp/world/nigeria/dia.htm

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