The 4 non-nuclear weapon states capable of developing nuclear weapons the fastest in the world

1. South Africa
Previously manufactured and possessed 6 nuclear weapons but voluntarily dismantled them.
2. Japan
Legally stockpiles dozens of tons of plutonium through US cooperation.
Could produce them as early as tomorrow.
3. Iran
They are on the same level as North Korea, as they develop technology together.
4. South Korea
Holds the highest capacity for nuclear power generation. Through reactor testing,
they have mastered all the core technologies for nuclear weapons.
However, plutonium procurement remains low.