Leon, re. "Derrrr!....snooping on our V boats.." In the Baltic?? And the aerial snapping cuts both ways, assuming we can afford new aerials these days. That said, I do take your wider point and don't suggest for one second we wind down our QRA.
The point is though, our sanctions are working. On top of that Putin's main revenue stream, oil, has crashed in price. He is in a tight spot. Cranking up echoes of the cold-war serves only to let him off the hook. The dream result from his point of view would be a midair, the more loss of life the better.