| | List of countries with nuclear weapons - Wikipedia, the free encyclopedia |
 | | When a spread of weapons is given (e.g., 0-10), it generally indicates that the estimate is being made on the amount of fissile material which has likely been produced, and the amount of fissile material needed per warhead depends on estimates of a country's proficiency at nuclear weapon design. |
 | | It tested weaponized nuclear warheads in 1998 ("Operation Shakti"), including a hydrogen bomb (though the yield of this device is debated with some speculation that the secondary fusion stage failed to ignite). |
 | | Below are countries who have been accused by a number of governments and intergovernmental agencies as currently attempting to develop nuclear weapons technology who are not suspected as yet having developed it. |
| en.wikipedia.org /wiki/List_of_countries_with_nuclear_weapons (5082 words) |