German intelligence chief warns of Russian ‘direct military confrontation’ with Nato if the Kremlin steps up warfare

Russia’s acts of sabotage against Western targets may eventually prompt Nato to consider invoking the alliance’s Article 5 mutual defence clause, the head of Germany’s foreign intelligence service has warned.

Speaking at an event of the German Council of Foreign Relations (DGAP) think tank in Berlin on Wednesday, BND chief Bruno Kahl said he expected Moscow to further step up its hybrid warfare.