Algeria's lower house, the People's National Assembly, ratified the deployment on Sunday, after the upper house, the Council of the Nation, unanimously approved it in an emergency session earlier that day. The votes activated a 2020 constitutional provision allowing President Abdelmadjid Tebboune to send troops abroad with parliamentary backing.
"We are not sending our soldiers to wage war in Niger, but for a mission to secure economic infrastructure," Algerian Senator Belkacem Boulghiti told reporters after the vote, cited by AFP and quoted by the BBC. The Associated Press quoted Boulghiti saying troops would be sent "to protect Algeria's economic and strategic interests, particularly its oil facilities in Niger."
The timing and number of soldiers to be deployed have not been made public. Algeria's state-owned energy company, Sonatrach, has operations in Niger, including exploration in the Kafra region and a planned Trans-Saharan Gas Pipeline that would carry Nigerian gas through Niger to Algeria.
The deployment comes amid a thaw in relations between Algiers and Niamey following a period of tension. Algeria condemned the 2023 coup that brought General Abdourahamane Tchiani to power, and ties worsened in 2025 after Algeria shot down a Malian drone, prompting Niger to recall its ambassador in solidarity with Mali. Relations have improved since Tchiani visited Algeria in February 2026, and Niger's Defence Minister Salifou Mody travelled to Algiers last Wednesday to discuss security cooperation.
Earlier this year, Algeria dispatched fighter jets to Niger to help suppress a coup attempt in late August. The Algerian Defence Ministry said at the time that four Sukhoi Su-30 aircraft had been deployed at Niger's request.
The move marks a break with Algeria's traditional reluctance to deploy forces abroad. Algerian forces fought in the 1973 Arab-Israeli war, but overseas deployments have remained exceptionally rare since then. The constitutional revision in 2020 formalised conditions under which troops could be sent abroad, requiring the backing of at least two-thirds of each parliamentary chamber.
The decision reflects Algeria's growing concern over instability in the Sahel, where armed groups linked to al-Qaeda and Islamic State operate. The region has seen a realignment of security partnerships, with France withdrawing troops from Mali, Burkina Faso and Niger, and Russia expanding its military cooperation with the junta-led governments.