Russia is secretly using Western high-tech products to safeguard its nuclear arsenal in the Arctic, contradicting expectations amid the ongoing war in Ukraine and rising military threat against Europe. A network of thousands of kilometers of cables, sensors, and sonars has been deployed across the Barents Sea to protect Moscow’s nuclear sites.
This system relies on advanced equipment from Europe, the US, and Japan, acquired through a complex web of shell companies. Le Monde and partners have uncovered new details about this secret project, called Harmony, using German court documents, leaked records, and interviews with military experts.
Since 2012, Russia has built this strategic underwater surveillance network to detect NATO submarines. Our investigation, coordinated by NDR, sheds light on how Moscow assembled this system, utilizing collaboration between Western and Eastern forces in the region.
Source: https://www.lemonde.fr/en/les-decodeurs/article/2025/10/23/russian-secrets-how-russia-built-an-arctic-spy-network-using-european-equipment_6746699_8.html