This isn’t a movie where there is a definitive implosion moment when foreign powers will able to just waltz in and “secure” their mass stockpile of nuclear weapons, or all of their ICBM silos.
This is a massive country with a distributed nuclear triad who’s capabilities are meant to withstand a first strike, and still be able to absorb a few more rounds of nuclear armageddon.
Guess again on how that scenario of foreign powers invading to capture their nuclear weapons would unfold.