Key facts
- German defense entrepreneur Stefan Thumann declared that Russia's sabotage operations against Germany are an "act of war."
- Thumann's company, Donaustahl, supplies combat drones to Ukraine.
- German authorities warned Thumann of an alleged Russian intelligence plot to poison him.
- Chancellor Friedrich Merz is preparing to blame Moscow for an attempted drone attack in Leipzig and impose sanctions.
German defense entrepreneur Stefan Thumann has asserted that Russia and Germany are effectively at war, citing alleged sabotage operations by Moscow as an "act of war." Thumann, whose company Donaustahl supplies combat drones to Ukraine, rejected the European Union's characterization of such actions as "hybrid war."
