None of the countries have a technology that can reliably stop a modern ICBM, let alone 7000 warheads simultaneously that Russia has.
https://en.wikipedia.org/wiki/Anti-ballistic_missile#Current...
https://en.wikipedia.org/wiki/Anti-ballistic_missile#Current...
I'm sure there is tons of technology we regular civilians have no idea of, and its actually a good strategy.
From 2 months ago:
https://www.cbsnews.com/news/u-s-missile-defense-test-fails-...
Everyone knows that what's "on display" is basically 10 years behind what military such as USA keeps in secret to use it as a last-resort type of response.