Incidents of Russian-orchestrated hybrid war attacks across NATO territory are entering a new dangerous, kinetic phase, leaders across the continent agree.

At a meeting in early September, EU Foreign Policy Chief Kaja Kallas said Russian President Vladimir Putin's aim is to "scare us away from supporting Ukraine."

"He will not succeed," she told journalists at a meeting of EU foreign ministers.

However, others in European diplomatic circles have told Euronews that the lack of a powerful deterrent response is leaving the continent vulnerable to an escalation in Russian attacks.

Germany’s decision to formally blame the Kremlin for planting an explosive-laden drone in Leipzig airport in August marked Berlin's most direct confrontation with Moscow after years of hostile interference.