The threat that Russia poses to NATO’s eastern flank “won’t ever stop,” former Swedish Foreign Minister Tobias Billström has told Newsweek , as European leaders contemplate a drone wall to protect the continent from acts of hybrid warfare.

Billström said that regardless of the outcome in Ukraine, Moscow will remain a threat to Europe, which needs to urgently scale up its capacity to defend against Russian aggression, amid growing alarm at drones encroaching on alliance airspace.

Russia has been implicated in drones entering NATO territory, flying over key infrastructure in Poland, Belgium and Denmark, in moves which have focused the minds of European leaders on a proposed drone wall to protect alliance territory.

"Even after the war, we really do have to be aware of the threat tha

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