We (I'm an American) have four ballistic missile subs that no longer carry ballistic missiles because of arms reduction treaties. The subs still exist, though, with each of the Trident launch tubes instead holding 7 Tomahawks. They are built to hide and they're very good at it--we can't even reliably track them ourselves. That means they could sneak in to launch points some distance from Russia. The Ukraine war has shown that heavy air defenses sometimes work against ground hugging missiles (but remember the Moskova--despite fearsome anti-air capability it for some reason couldn't engage two sea hugging missiles), but ares without heavy defenses fare poorly against even crude low altitude stuff. Expect most of those Tomahawks to get through, and there goes Russia's logistics capability. Most stuff of importance is within Tomahawk range of the coast.
We (I'm an American) have four ballistic missile subs that no longer carry ballistic missiles because of arms reduction treaties. The subs still exist, though, with each of the Trident launch tubes instead holding 7 Tomahawks. They are built to hide and they're very good at it--we can't even reliably track them ourselves. That means they could sneak in to launch points some distance from Russia. The Ukraine war has shown that heavy air defenses sometimes work against ground hugging missiles (but remember the Moskova--despite fearsome anti-air capability it for some reason couldn't engage two sea hugging missiles), but ares without heavy defenses fare poorly against even crude low altitude stuff. Expect most of those Tomahawks to get through, and there goes Russia's logistics capability. Most stuff of importance is within Tomahawk range of the coast.