Léon Daudet launched a fabricated espionage campaign against the Swiss food manufacturer Maggi on the eve of World War I, according to research detailed by historian and journalist Caroline Michel-Aguirre in her book K comme Komplot.
The Anatomy of the Maggi Espionage Fabrication
Ahead of the First World War, Léon Daudet accused Maggi of operating as a German espionage ring under commercial cover, according to research detailed by Caroline Michel-Aguirre. Daudet, a prominent polemicist and co-founder of the royalist daily L’Action française alongside Charles Maurras, reinterpreted routine business operations to manufacture his claims. Commercial farm maps intended for sales representatives, milk depots, and railway logistics were recast as elements of a hostile intelligence network.
Despite the accusations, the company’s founder, Julius Maggi, was a Swiss national—neither German nor Jewish, contrary to the xenophobic narratives propagated by the newspaper. Daudet asserted that the firm would poison the national food supply upon the outbreak of hostilities. While no such poisoning occurred, the campaign generated immediate public hostility. When war broke out, Maggi stores faced physical attacks, and public authorities ordered the removal of the brand’s enamel advertising plaques, suspecting they served as visual markers for German forces.
Political Fallout and the Fall of Louis-Jean Malvy
The disinformation campaign soon extended beyond corporate targets to impact high-ranking government officials. In 1917, Daudet targeted Minister of the Interior Louis-Jean Malvy, alleging without proof that Malvy had transmitted French military plans to Germany through Félix Sautter, the director of Maggi.
Malvy was ultimately forced to resign from his ministerial post, demonstrating how vulnerable democratic institutions bowed to sustained media pressure during wartime crises.
Parallels Between Early 20th-Century Propaganda and Modern Disinformation
Michel-Aguirre notes that Daudet utilized a rhetorical technique known as conglobation, overwhelming interlocutors and readers with a massive accumulation of arguments designed to bypass critical reflection and prevent immediate counter-demonstration. When assertions were proven false, Daudet evaded responsibility while continuing to claim vindication whenever external events loosely aligned with his warnings.
The campaign eventually subsided as wartime tensions cleared, leading to legal defeats for Daudet, the judicial rehabilitation of Félix Sautter and Julius Maggi, and the continued commercial operation of the brand.
