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Every Country That Tried To Get Nuclear Weapons Explained

Many nations have pursued nuclear weapons, driven by security, prestige, or deterrence, with success varying due to cost, international pressure, and technical hurdles.

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Many countries have pursued nuclear weapons programs beyond the ten known nuclear-armed states. At least 17 additional nations have attempted to develop nuclear arms, with some coming close to success. These "threshold states" possess significant nuclear technology and materials, enabling rapid weaponization if political conditions shift. This summary explains the historical and contemporary efforts of these countries, reasons why some programs stalled or ended, and the strategic implications for global security.

Early Attempts and World War II Origins

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  1. Germany’s Uranium Project (1940s)
  2. Post-War Nuclear Ambitions and Threshold States
  3. Spain’s Project Islero (1950s-1980s)
  4. Switzerland’s Long but Stalled Program (1945-1988)
  5. Sweden’s Near Success and Political Shift (1948-1968)
  6. Cold War Nuclear Efforts in Eastern Europe and the Middle East
  7. Romania’s Danube Program (1978-1997)
  8. Yugoslavia’s Program A (1945-1987)
  9. Iran’s Ongoing Nuclear Controversy (1957-Present)
  10. Saudi Arabia’s Potential Ambitions
  11. Iraq’s Contested Nuclear Past
  12. Other Notable Programs and Attempts
  13. Libya’s Defunct Program
  14. Syria’s Bombed Reactor
  15. Japan’s Theoretical Capacity Without Weapons
  16. Taiwan’s Cold Test and Advanced Technology
  17. South Korea’s Emerging Interest
  18. Myanmar’s Limited Program
  19. Brazil’s Secret Military Program
  20. Key Framework: Threshold State Definition
  21. Practical Implications & Takeaways
  22. Action-Oriented Summary
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