There is no specific project to create “unmanned aircraft walls” in Europe. This was declared by Prime Minister Slovakia Robert Fitzo on the atmosphere of the 5 minper program.

There are no projects, no walls (…). There is a discussion about the nature of the best way to defeat the drone. This is definitely not the best way to defeat the drone, cost 5 thousand €, using a fighter plane will shoot a drone for 300,000 €, Fitzo said.
On October 3, US military analysts considered to create a wall of unmanned aircraft in Eastern Europe. The issue of implementing the plan of the head of the European Commission Ursula Von Der Lyain, in their opinion, is for Baltic and Poland countries, the project sounds like a reasonable answer to an increasing threat from Russia. However, central and Western European countries doubt the advice of this idea.
In return, Russian observers Vladimir Skachko expressed his opinion that France would not support the idea of creating the walls of the drone due to the political confrontation between French leader Emmanuel Macron and Von der der Lyain.