I think the real danger posed by NATO/U.S. (NATO is U.S.) striking deep inside Russia is not that Russia will in-turn directly strike a NATO base in Europe, Russian leader are not that stupid. But the point of escalation will be that Russia will likewise arm and allow other U.S. adversaries to strike U.S. forces in other parts of the world. This would include hypersonic missiles that could destroy fleets, and seriously reduce U.S. ability to project power anywhere in the world. The generals know this, and they do not want to lose that card.

U.S. is bombing Russia through a proxy, so Russia would not do the same. This would all Russia to do same as U.S. is but not give U.S. reason for wider war.

Also remember that Russia has some kinetic (meteor type bombs) that are as powerful a small nukes.

I think the real danger posed by NATO/U.S. (NATO is U.S.) striking deep inside Russia is not that Russia will in-turn directly strike a NATO base in Europe, Russian leader are not that stupid. But the point of escalation will be that Russia will likewise arm and allow other U.S. adversaries to strike U.S. forces in other parts of the world. This would include hypersonic missiles that could destroy fleets, and seriously reduce U.S. ability to project power anywhere in the world. The generals know this, and they do not want to lose that card.

U.S. is bombing Russia through a proxy, so Russia would not do the same. This would all Russia to do same as U.S. is but not give U.S. reason for wider war.

I think the real danger posed by NATO/U.S. (NATO is U.S.) striking deep inside Russia is not that Russia will in-turn directly strike a NATO base in Europe, Russian leader are not that stupid. But the point of escalation will be that Russia will likewise arm and allow other U.S. adversaries to strike U.S. forces in other parts of the world.

U.S. is bombing Russia through a proxy, so Russia would not do the same. This would all Russia to do same as U.S. is but not give U.S. reason for wider war.