A Hidden Chapter of Colonial War
A recently released documentary has brought renewed attention to one of the more concealed aspects of France's colonial history: the covert use of chemical weapons during Algeria's brutal war of independence. Drawing on archival documents and firsthand accounts from both French soldiers and Algerian combatants, the film constructs a detailed picture of a military campaign that operated in direct contradiction to established international conventions.
Evidence Points to Systematic Chemical Warfare
At the heart of the documentary's findings is historical research conducted by scholar Christophe Lafaye, whose work has uncovered compelling documentary evidence of deliberate chemical weapons use by French forces. Among the key pieces of evidence is a letter dated 1956, written by a senior French military commander and addressed to the government. The letter makes explicit reference to what it describes as the "use of chemical means" — language that researchers interpret as direct confirmation of the practice.
According to the film, France established a dedicated Special Weapons Unit in December 1956, specifically designed to deploy chemical agents against Algerian independence fighters. The unit reportedly used CN2D gas, a substance previously employed during World War I, to flush out Algerian combatants who had taken cover in mountain caves and natural fortifications across the country's rugged terrain.
Scale of Incidents Far Larger Than Documented
Perhaps one of the most striking revelations concerns the estimated scale of these operations. Researchers suggest that between 8,000 and 10,000 separate incidents involving chemical weapons may have taken place during the conflict. However, only approximately 440 individual attacks have been formally documented to date, highlighting a significant gap between what is believed to have occurred and what has been officially confirmed.
The disparity raises difficult questions about how many incidents remain buried in classified archives or have simply gone unrecorded, leaving survivors and victims' families without formal recognition of what they endured.
The Ghar Ben Shatouh Attack
Among the incidents cited in the documentary, one stands out for its scale and human cost. In March 1959, an attack at a location known as Ghar Ben Shatouh resulted in an estimated 150 civilian deaths. The incident is presented as one of the most devastating single uses of chemical weapons during the conflict, and its inclusion in the film underscores the argument that these were not isolated military operations but part of a broader, organized strategy.
The testimony of former soldiers and Algerian fighters, combined with archival evidence, points to a campaign that was neither accidental nor improvised, but deliberately sanctioned at senior levels of the French military establishment.
France's Delayed Recognition of Chemical Weapons Ban
The timeline surrounding France's formal legal position on chemical weapons adds another layer of complexity to the story. Despite being a signatory to the 1925 Geneva Protocol — an international agreement that prohibited the use of chemical and biological weapons in warfare — France did not formally incorporate a domestic ban on chemical weapons into its own legislation until 1993. That year marks more than three decades after Algeria gained its independence in 1962, a gap that critics argue reflects a reluctance to fully reckon with wartime conduct.
Testimony From Both Sides of the Conflict
The documentary's use of personal testimony from individuals on both sides of the war lends the historical evidence a human dimension that archival documents alone cannot provide. Former French soldiers who participated in operations during the conflict, alongside Algerian veterans who survived or witnessed chemical attacks, offer accounts that help illustrate the reality of what took place in remote mountainous regions far from public or international scrutiny.
These testimonies serve both as historical record and as a form of bearing witness — an acknowledgment that, for many who lived through the war, the experiences have never been formally recognized or addressed by French authorities.
Broader Implications for Historical Memory
The release of this documentary comes at a time when France and Algeria continue to navigate a complex and often fraught relationship shaped by their shared colonial history. Questions of accountability, reparation, and historical transparency remain sensitive and politically charged in both countries.
While the French government has taken some steps in recent years to acknowledge certain aspects of its colonial past in Algeria, the specific issue of chemical weapons use has received comparatively limited official attention. Historians and advocacy groups argue that a fuller accounting of these events is necessary, both for the integrity of the historical record and for the dignity of those affected.
The documentary does not claim to have uncovered every incident or to present a complete picture, but its findings suggest that the use of chemical weapons during Algeria's war of independence was far more extensive than previously acknowledged in public discourse.
Source: Al Jazeera
