NATO could respond to a potential provocation with attacks on Kaliningrad, St Petersburg, the Kola Peninsula, and the Black Sea, reported The Telegraph, citing German Luftwaffe head Holger Neumann.

The provocation could see Putin's troops cross over into Poland , and vital infrastructure could be targeted by missiles and drones.

Vladimir Putin could use an attack on Nato as a bargaining chip for the war in Ukraine, sources told Polish media