If Putin is going to attack Sweden for letting two countries make a financial transaction at a Swedish airport, then countries should also be too afraid to sanc

If Putin is going to attack Sweden for letting two countries make a financial transaction at a Swedish airport, then countries should also be too afraid to sanction Russia. There are, unfortunately, two possible extremes when faced with a nuclear armed tyrant: Firstly, you could decide that they are not crazy enough to destroy the world, so they wouldn't launch nukes just because you implemented a no fly zone in a territory where they are operating (i.e. you shot down their aircraft). The other extreme is that you tread on eggshells, trying not to do anything that might trigger a response, so as not to "escalate" things. That's arguably the approach Germany took when it only offered helmets to Ukraine, which obviously failed to prevent an escalation. Now Germany is sending weapons to Ukraine, and doesn't seem to have suffered any unbearable consequences, although maybe Sweden would do, as it doesn't have the protection that Article 5 offers.