Russia may launch an attack on NATO territory in the coming years, Bruno Kahl, chief of the German Federal Intelligence Service (BND), has said. Source: Zeit Online, citing Kahl at the German Council of Foreign Relations in Berlin,

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 said on Wednesday.

"I think we have to face up to the fact that the Russians think they're in a state of war with us," Richard Dearlove, the former head of MI6, told Sky News on Nov. 27.

Russia's extensive use of hybrid measures against western targets increases the risk that NATO may eventually consider invoking the alliance's Article 5 mutual defence clause, the head of Germany's foreign intelligence service said.