Nigeria and the United States kill 175 Islamic State fighters — Lake Chad becomes an American theater again

In Metele, in Borno State, the strikes did not just destroy a camp. They have shifted the political line of the Nigerian war. On May 19, the Nigerian military announced that coordinated operations with the United States Africa Command had killed 175 Islamic State fighters in the northeast of the country. AFRICOM confirmed the operation and specified that no American or Nigerian soldiers had been injured. A few days earlier, Abuja and Washington had already claimed the death of Abu-Bilal al-Minuki, also known as Abu Bakr al-Mainuki, in a precision operation around the Lake Chad basin.

The figure of 175 dead should be treated as a military assessment, not as a judicial toll. In this theater, bodies are rarely counted by independent observers, and armed groups have an interest in minimizing their losses. But the sequence is clear enough to be taken seriously: in less than a week, Washington shifted from discreet technical support to an assumed offensive participation against the Islamic State in West Africa (ISWAP).

An operation that changes the nature of the American presence

Since February, about 200 American military personnel had been reported in Nigeria, officially for training, intelligence, and specialized technical capabilities. This vocabulary is familiar. It allows for avoiding the word intervention too quickly. But an air-ground operation against an Islamic State leader, followed by strikes against fighters in the same area, is no longer a simple advisory mission.

Metele is not an abstract point on a map. It is a transit area to the islands and shores of Lake Chad, between Maiduguri, the Cameroonian border, and the corridors leading up to Niger. From experience, whoever controls these routes manages less a continuous territory than a system of movement: fuel, motorcycles, canoes, village relays, arms caches. This is precisely the type of environment where American aerial intelligence can provide a timely advantage, but where ground occupation remains a Nigerian affair.

Al-Minuki, a knot more than a symbol

Abu-Bilal al-Minuki was presented by Washington as a globally ranked official within the Islamic State. This qualification will remain debated, as African jihadist organizations do not publish reliable organizational charts. What seems less contestable is his role in the junction between ISWAP, financial networks, and coordination with the Islamic State Province in the Sahel. The CSIS reminds us that al-Minuki was associated with the al-Furqan office, the structure that manages the activities of the Islamic State in West Africa and encourages cooperation between ISWAP and Sahelian cells.

For Abuja, the loss is significant. ISWAP has survived the deaths of leaders, internal splits, and the disappearance of Abubakar Shekau. The group is not a band held by a single man. But a framework capable of linking finances, propaganda, logistics, and internal arbitration is more difficult to replace than a local column commander. The real question is not whether ISWAP will disappear. It will not disappear. The question is how long it will take for its apparatus to re-establish its connections between Lake Chad, northern Nigeria, and the Sahelian networks.

Lake Chad, the backyard of Central Sahel

The temptation in Paris, Washington, or Brussels is often to separate the files: Mali on one side, Nigeria on the other, Niger in between. On the ground, this separation is administrative, not operational. Fighters, fuel traffickers, and smugglers do not respect the categories of foreign ministries. Since the attack on Niamey airport in January, the hypothesis of more active cooperation between ISWAP and the Islamic State networks in the Sahel is no longer theoretical.

The Diffa-Maiduguri road, the outskirts of Bosso, the islands of the lake, and the paths to northern Borno form a single breathing space for armed groups. If American and Nigerian pressure becomes sustainable, ISWAP may seek to disperse into more civilian areas, more difficult to strike without collateral damage. This is where a victorious operation can become politically dangerous: the more the enemy dilutes into villages and local economies, the less aerial superiority is sufficient.

The civil risk and the memory of mistakes

It is important to recall an unpleasant point. Nigeria has a long history of poorly informed strikes. Civilians have been killed repeatedly by mistake, and this memory circulates faster than a military communiqué. No public accusation of civilian casualties currently accompanies the May strikes conducted with the Americans. But the absence of accusation is not yet complete proof, especially in areas where journalists, NGOs, and even local authorities have difficulty operating.

The danger for Washington is to believe that the model works because the first two operations produced a spectacular result. The danger for Abuja is to present the figure of 175 dead as a strategic turning point. Decapitation operations create time. They do not restore rural policing, do not reopen markets, do not secure secondary roads, and do not alone cut off the economy of kidnapping, taxation, and fuel that feeds armed groups.

A tactical victory, not yet a campaign

This sequence nonetheless marks a real change. After the American withdrawal from Niger and the collapse of several Sahelian partnerships with the West, Nigeria becomes the most credible foothold for Washington against the Islamic State in West Africa. This is not a second Barkhane. Nigeria remains master of its theater, and the United States seems to favor intelligence, drones, targeted strikes, and special forces rather than a heavy territorial deployment.

But the logic can slip. A successful strike calls for another strike. A success against a leader pushes to seek a successor. A technical presence becomes a protective presence, then a combat presence. The Americans know this slope; the French do too. In the Sahel, operations often begin with a clear target and end up managing a space that no one really controls.

The next indication to watch is not the next victory communiqué. It will be found on the roads of Borno: attacks against convoys, ambushes around Metele and Monguno, movements towards the Cameroonian border, pressure on Diffa in Niger. If ISWAP responds with dispersion and local reprisals, the American campaign will have to prove that it knows how to endure without turning every strike into recruitment for the enemy. It is there, very concretely, that this theater is won or lost.

Sources

• Associated Press, May 19, 2026, joint Nigeria-U.S. operation and reported toll of 175 fighters killed.
• U.S. Africa Command, press releases from May 16 and 18, 2026, on operations against the Islamic State in northeastern Nigeria.
• CSIS, May 18, 2026, analysis by Alexander Palmer on Abu-Bilal al-Minuki and American involvement in Nigeria.
• Al Jazeera, May 16, 2026, profile of Abu-Bilal al-Minuki and ISWAP context in the Lake Chad basin.