Article

Despite widespread education on nuclear fission, only nine countries currently possess nuclear weapons: the U.S., Russia, UK, France, China, India, Pakistan, Israel, and North Korea. Key obstacles to nuclear armament include complex technical requirements for uranium enrichment and weapon design, substantial financial investments estimated between $10 billion and $100 billion, and the international non-proliferation regime, exemplified by the Treaty on the Non-Proliferation of Nuclear Weapons (TNP).

Additionally, strategic calculations discourage many nations from pursuing nuclear capabilities, as existing security guarantees reduce the perceived need for independent nuclear deterrents. The combination of these challenges maintains a limited nuclear club.