Nigeria and the United States have confirmed a joint military operation in the Lake Chad Basin that led to the killing of senior Islamic State leader Abu-Bilal Al-Manuki, also known as Abu-Mainok.

President Bola Tinubu described the operation as a “daring joint operation” that dealt a heavy blow to ISIS ranks, while US President Donald Trump said the militant was “the most active terrorist in the world” and the “second in command of ISIS globally.”

Here are the things to know about Abu-Bilal Al-Manuki, according to the Counter Extremism Project and Defence Headquarters:

1. Identity and aliases

He was identified as Abu Bakr ibn Muhammad ibn ‘Ali al-Mainuki, also known as Abu Bilal Al-Minuki, Abor Mainok, and Abubakar Mainok.

According to the Counter Extremism Project, he was born in 1982 in Mainok, Benisheikh, Borno State, Nigeria, and is a Nigerian national.

2. Rise within ISIS networks

CEP describes him as a senior ISIS leader in the Sahel, operating within the Lake Chad division of ISIS’s General Directorate of Provinces.

He was designated a Specially Designated Global Terrorist by the United States Department of State on June 8, 2023, over his links to ISIS operations.

3. Operational role and influence

He was linked to ISIS’s al-Furqan office network, which provides operational coordination and strategic guidance across Nigeria, the Sahel, and Islamic State in the Greater Sahara

CEP notes that he rose to prominence following the 2018 killing of ISWAP leader Mamman Nur, becoming a key commander within ISIS-aligned structures in the Lake Chad Basin.

He was also reported to have been involved in internal factional tensions within extremist groups, including strained relations with Boko Haram leadership under Abubakar Shekau.

4. Regional activities and structure

He was active in Lake Chad-based extremist operations and formed part of ISIS’s wider command structure across West Africa and the Sahel, where the group maintains multiple regional provinces.

5. Boko Haram background

The Defence Headquarters said Al-Manuki was a former Boko Haram commander before pledging allegiance to ISIS in 2015, marking his transition into global jihadist networks.

6. Weapons, drones and media operations

According to the DHQ, he oversaw weapons manufacturing, explosives development, drone capabilities, and global media operations within ISIS.

He was also described as a key figure in the group’s propaganda and communication architecture.

7. Strategic command role

He reportedly provided guidance to ISIS affiliates outside Nigeria on economic warfare and operational strategy, making him a central node in the group’s global coordination structure.

8. Senior leadership position

Military intelligence assessments indicate that, as recently as February 2026, he may have been elevated to Head of the ISIS General Directorate of States, positioning him among the top leadership ranks of the global network.

9. Terror-linked operations

He was linked to the 2018 Dapchi schoolgirls kidnapping, one of Nigeria’s most high-profile abductions that drew international condemnation.

He also reportedly served as al-Furqan GDP Office Emir in 2023, coordinating ISIS-linked operations across the Sahel and West Africa, including attacks targeting civilians and minority communities.

10. Cross-border militant activity

Between 2015 and 2016, he allegedly facilitated the movement of fighters to Libya in support of ISIS operations in North Africa, extending his influence beyond the Lake Chad region.

Conclusion

The killing of Abu-Bilal Al-Manuki marks a significant counterterrorism development in the Lake Chad Basin, where ISIS-linked groups have remained active despite sustained military pressure. The operation underscores growing Nigeria–United States security cooperation aimed at disrupting extremist leadership networks across the region.