Nuclear weapons: Who has what?

More than two dozen countries have nuclear power, but only a few have nuclear weapons or are suspected of pursuing nuclear weapons. Click on a country below to learn more about their nuclear programs.

• Overview
 
• Country-by-country details

• Known to have nuclear weapons
• Suspected to have nuclear weapons
• Pursuing nuclear weapons
• Suspected to be pursuing nuclear weapons*

* Iran maintains that it is enriching uranium for civilian energy purposes only, but the International Atomic Energy Agency says Iran has not been cooperating enough for the agency to verify whether the intent is solely for peaceful means. As a result, the U.N. Security Council and a number of Western nations have placed economic and arms-related sanctions on Iran.

COUNTRY	FIRST TEST	MOST RECENT TEST	TOTAL TESTS	ESTIMATED WARHEADS
United States	1945	1992	1,054	7,650
Russia	1949	1990	715	8,420
United Kingdom	1952	1991	45	225
France	1960	1996	210	300
China	1964	1996	45	240
India	1974	1998	6	80-100
Pakistan	1998	1998	6	90-110
North Korea	2006	2013	3	Fewer than 10
Israel	No confirmed test	No confirmed test	No confirmed test	80
Iran	No confirmed test	No confirmed test	No confirmed test	0

Sources: Federation of American Scientists, CIA World Factbook, Nuclear Threat Initiative, U.S. Census Bureau