They did so without IAEA inspectors monitoring them and significant help from the west. UK provided samples of plutonium and highly enriched lithium for nuclea

They did so without IAEA inspectors monitoring them and significant help from the west. UK provided samples of plutonium and highly enriched lithium for nuclear weapons. I am not aware of any countries that have developed nukes while under NPT with active inspections. North Korea kicked out their inspectors and it took them 3 years after that to get a bomb.