If the West allows to use long-range missiles systems to strike targets on Russian territory, then Russia will see this as an attack by states that also possess nuclear potential. The subtext of this warning is that long-range strikes on strategic targets can invalidate Russia's military conventional and strategic, including nuclear, potential.
This was stated in the Euronews Primetime studio by journalist Valery Todorov.
Although it sounds like a warning, I think that with an escalation of hostilities, nothing can be ruled out. The list of threats that Russia recognizes is expanding. Russia's fears are that long-range systems can destroy their strategic potential.
„In the conditions of this war, in which Russia is clearly not a convincing military power, the use of nuclear weapons should not be underestimated. Public opinion in the US is also extremely divided on what policy to adopt in the future towards Russia, Todorov also commented.