So are we asking the wrong question altogether? Rather than building a drone wall to stop the drones, is it better to target the bases launching the drone themselves - as the old saying goes, shoot the archer, not just the arrow.

"It's one thing to become more resilient against it, but it would be much better if it did not happen at all," argues Ms Bego.

"And that's really around making it much clearer to Russia, or whichever actor is behind this, that this kind of behaviour crosses the line. It has consequences and comes with the costs for them. And that's important. It should really be part of this."

But any suggestion of Nato hitting Russian targets – kinetically, as opposed to digitally in cyberspace – would be incredibly risky and escalatory.

Ever since Russia carried out its full-scale invasion of Ukraine on 24 February 2022 the challenge for Nato, and especially its most powerful member the US, has been to help Ukraine to defend itself but without getting drawn into a Nato-Russia war.

Building a defensive drone wall in Europe is one thing. Attacking the places where those drones are launched from is quite another.

Top picture credit: Getty Images, Sketchfab