> the shield would destroy [some of] this volley of Russian missiles
Russia used to have 10K+ rockets, now it's around 3000 but they're MIRVs, so they just split when reaching space and have independent targetting... so 3000 x 10/20 payloads to track and destroy.
The anti-missile shield won't be able to destroy them before they reach space (Russia is big... anti-missile shield can't reach Russian territory...)
Russia can detect preemptive attacks (spies, radars, satellites, ...)
After they're launched, good luck stopping them.
As for the Nuclear Blackout, strategy is like this - launch all of them, some of them would blow in space (just need a few 1M nukes blowing off at the same time to black out tracking for all that follow and added benefit - fry out satellites)
This is ignoring all the submarine launched nukes...
So, I hope you understand the first strike then neutralize is unrealistic...
Even if those are somehow not launched, what happens to:
- short range tactical nukes - army groups can launch independently and who knows where they're deployed
- hypersonic hug-the-ground missiles - can't radar track them since they're flying so low, can't hit them due to speed...
- submarines launching nukes / destroying most major population centers...
- Nuclear winter... even if say everything works and Russia decides not to fight back... the world is stuck with nuclear winter for century or two...
- Other players?, would the rest of the world sit idly by for nuclear winter?
> This doesn't make them impenetrable. Defenses can be overwhelmed, artillery can be deployed to take down anti-air, strike troops can do the same.
Sure... nothing is impenetrable, but 70-80% losses would make it prohibitive to sustain operations...
Nuclear tipped anti-air missiles make overwhelming attacks really stupid... just need one of these to wipe out an attack...
Tactical nukes make overwhelming ground attacks trying to neutralize anti-air stupid...
Taking that out of the equation attackers are limited to small strikes which would take heavy losses... but hopefully limited to conventional only..
> they could also find themselves attacked through multiple borders.
NATO is only on the western border... Russia is big... Look how well invading turned out for Napoleon or Hitler...
Hell... Look at Vietnam and Korea to see what happens when you meet a determined defendant to appreciate how NATO would fumble on offensive...