On August 28-29, 2026, renegade soldiers in Niamey attacked Air Base 101 at Diori Hamani International Airport, the state broadcaster, and the presidential palace. Within hours, Algeria had four Sukhoi Su-30 fighter jets on the ground in Niger's capital, accompanied by an air-to-air refuelling aircraft. President Abdelmadjid Tebboune confirmed the deployment in a broadcast interview Saturday, framing it as a response to unnamed parties who had "gone too far." The timing is pointed. Niger's Prime Minister Ali Mahaman Lamine Zeine had been in Algiers on August 26-27 leading a high-level ministerial delegation when the mutiny erupted. He flew home at night. Tebboune characterized the attack as "a provocation against us" — language that claims the coup attempt as a threat to Algeria itself, not merely to a neighbor. Algeria's intervention is the clearest expression yet of a doctrine Algiers has been building for years: that Sahel instability is an existential threat to Algerian national security, and that Algeria — not France, not Russia, not ECOWAS — should be the region's primary security guarantor. The shared border with Niger is over 950 kilometers of largely ungoverned desert. Every regime change in Niamey reshuffles the security calculus for southern Algeria. Niger's military government has accused France of orchestrating the failed mutiny. Paris denied involvement. The accusation is strategically useful regardless of its truth: it reinforces the junta's break with France and creates political space for Algeria to fill the vacuum. Algeria gets to be the anti-colonial security partner — an African power backing an African government against European meddling, real or alleged. The deployment itself — two patrols of four Su-30s plus a tanker — is modest in military terms but enormous in signaling. Air-to-air refuelling capability means Algeria demonstrated the ability to project and sustain air power deep into the Sahel. This is not a humanitarian gesture. It is a capability announcement directed at every actor in the region. The deeper question is what Algeria is buying. Tebboune's government has been pursuing a gas pipeline through Niger to Nigeria, a project worth billions that requires political stability along the entire route. Security ties are the currency that buys pipeline deals, mineral access, and border cooperation on migration and jihadist movements. Algeria is not acting from altruism — it is investing in a client relationship with Niger's military government. The Sahel is now a three-way competition between residual French influence (declining fast), Russian military presence through Africa Corps (formerly Wagner), and Algeria's bid to be the responsible regional power. This intervention makes the lines clearer. Algeria is staking a claim, and it backed that claim with jets on the tarmac.