Countries with Nuclear Weapons

1. a bomb or missile that uses nuclear energy to cause an explosion.

   "both leaders pledged to work together to prevent the proliferation of nuclear weapons"
2. 
   

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