Scores of suspected Islamic State West Africa Province (ISWAP) terrorists were killed after Nigerian troops repelled a coordinated multi-pronged assault on a military base in Borno, northeastern Nigeria, in the early hours of Saturday, 16 August 2025. The attack targeted a Forward Operating Base in Mandaragirau, Biu Local Government Area, and was thwarted before the militants could breach the perimeter.

How the Attack Unfolded

Mohammed Goni, spokesperson for the military-led Joint Task Force in the northeast region, said in an official statement that the terrorists launched simultaneous assaults from two fronts at approximately 2 a.m. local time. Troops detected the advancing militants using early-warning and surveillance systems and deployed a combat team to intercept them along one approach, successfully repelling the first wave.

'The second group attempted to bypass the troops and infiltrate the base but was equally met with superior firepower,' Goni said, adding that the coordinated military response forced the terrorists to withdraw in disarray. Troops then launched a pursuit along the attackers' withdrawal routes.

Weapons Recovered, Casualties Confirmed

Nigerian forces recovered a substantial quantity of arms and combat equipment from the scene, including a rocket-propelled grenade (RPG) launcher, RPG bombs and chargers, and a camcorder. Goni further stated that surveillance footage subsequently showed fleeing terrorists dragging the bodies of many of their killed colleagues toward an area known as the Timbuktu Triangle.

Recent Airstrike Also Targeted ISWAP in Sambisa Forest

The ground repulsion follows a separate Nigerian military airstrike last week that killed approximately nine suspected terrorists, including a key commander, at an ISWAP camp in the Sambisa Forest area of Borno. Nigerian Air Force spokesman Ehimen Ejodame said the operation was carried out following credible intelligence about terrorist movements in the area, which is known to host one of the largest terrorist camps in Nigeria.

'Following identification and confirmation of the target, the Nigerian Air Force aircraft conducted a precision engagement on the location,' the statement said.

The Broader ISWAP-Boko Haram Threat

ISWAP has been operating in collaboration with its affiliate group, Boko Haram, in a sustained bid to establish an Islamist state across northeastern Nigeria. The two terror groups have also extended their attacks to neighbouring countries in the Lake Chad Basin, raising regional security concerns. The Nigerian military has vowed to sustain operations against both groups to degrade their operational capabilities and weaken their ability to coordinate future attacks.

What Comes Next

The successive military successes — a ground repulsion and a precision airstrike within days of each other — signal an intensified operational tempo by Nigerian forces in Borno. Analysts tracking the region note that ISWAP's continued use of multi-front assault tactics reflects an attempt to stretch military defences, even as its battlefield losses mount. The coming weeks will test whether the group can reconstitute its capacity in the Timbuktu Triangle and Sambisa Forest areas.