Algeria has ordered troops into Niger, ending a half-century of military non-intervention abroad. The move, rubber-stamped by both parliamentary chambers in emergency session, is framed as a response to Niger's request for help with "changing security conditions" in the Sahel. The actual asset being defended is far more specific: Algerian oil facilities and the planned Trans-Saharan Gas Pipeline, which would carry Nigerian gas through Niger to Algeria and onward to European markets. The pipeline is the load-bearing fact. Sonatrach, Algeria's state energy monopoly, has been developing the Trans-Saharan route for years. Europe's post-2022 scramble for non-Russian gas supply makes the project suddenly urgent — and suddenly worth defending with soldiers. Senator Belkacem Boulghiti was unusually direct after the vote: the troops will "protect economic infrastructure, particularly Algerian oil facilities in Niger." He added they were "not sending our soldiers to wage war," a caveat that tends to age poorly. The diplomatic reversal is remarkable. Algeria initially condemned the July 2023 military coup that brought General Abdourahamane Tiani to power in Niger. Relations cratered further in April 2024 when Algerian forces shot down a Malian drone near the border, prompting the Alliance of Sahel States — Niger, Mali, and Burkina Faso — to recall ambassadors from Algiers. Twelve months later, Algeria is deploying troops at Tiani's invitation. Energy infrastructure realigns allies faster than ideology. Algeria's 2020 constitutional reform created the legal mechanism for this: a two-thirds legislative supermajority can authorize overseas military operations. The reform looked theoretical when passed. It is now operational. No troop numbers or timeline have been disclosed, which suggests either genuine operational sensitivity or that the deployment's scale is still being negotiated between Algiers and Niamey. The Sahel's security situation is real, not manufactured. Al-Qaeda- and ISIL-linked armed groups have operated across Niger, Mali, and Burkina Faso for years. All three nations are now ruled by coup-installed military governments organized into the Alliance of Sahel States. France was pushed out. The United States withdrew its drone base from Agadez in 2024. Russia's Africa Corps has filled some of the gap. Algeria is now layering itself in — not as a regional peacekeeper, but as a pipeline guard. The strategic logic is straightforward: Algeria is spending military capital to protect the infrastructure that will generate decades of gas-transit revenue. Europe gets a potential supply alternative. Niger's junta gets external military backing that legitimizes its rule. The costs — operational risk, entanglement in Sahel insurgencies, potential friction with the Alliance of Sahel States — are distributed across Algerian taxpayers and soldiers. This is Algeria choosing to become an infrastructure-defense power in West Africa. The 1973 deployment to Egypt was ideological solidarity. This one is pipeline economics. Whether the deployment stays limited to facility protection or creeps into broader counter-insurgency operations will determine whether Algeria has made a shrewd investment or opened an indefinite military commitment.
