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Who has nukes?

<p>According to the counting rules in the Strategic Arms Reduction Treaty (START), the United States has an estimated 5,200 nuclear warheads and 2,700 operationally deployed warheads.   


REUTERS/Jung Yeon-Je/Pool</p>

According to the counting rules in the Strategic Arms Reduction Treaty (START), the United States has an estimated 5,200 nuclear warheads and 2,700 operationally deployed warheads. REUTERS/Jung Yeon-Je/Pool

According to the counting rules in the Strategic Arms Reduction Treaty (START), the United States has an estimated 5,200 nuclear warheads and 2,700 operationally deployed warheads. REUTERS/Jung Yeon-Je/Pool

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<p>Russia is estimated to have around 14,000 nuclear weapons, although the total is uncertain because there is no accurate count of tactical weapons.    



REUTERS/Denis Sinyakov</p>

Russia is estimated to have around 14,000 nuclear weapons, although the total is uncertain because there is no accurate count of tactical weapons. REUTERS/Denis Sinyakov

Russia is estimated to have around 14,000 nuclear weapons, although the total is uncertain because there is no accurate count of tactical weapons. REUTERS/Denis Sinyakov

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<p>France has pared down its arsenal to approximately 300 nuclear warheads.    



REUTERS/Benoit Tessier</p>

France has pared down its arsenal to approximately 300 nuclear warheads. REUTERS/Benoit Tessier

France has pared down its arsenal to approximately 300 nuclear warheads. REUTERS/Benoit Tessier

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<p>Britain's nuclear stockpile consists of fewer than 200 strategic and "sub-strategic" warheads on four Vanguard-class nuclear-powered ballistic missile submarines.    


REUTERS/Luke MacGregor</p>

Britain's nuclear stockpile consists of fewer than 200 strategic and "sub-strategic" warheads on four Vanguard-class nuclear-powered ballistic missile submarines. REUTERS/Luke MacGregor

Britain's nuclear stockpile consists of fewer than 200 strategic and "sub-strategic" warheads on four Vanguard-class nuclear-powered ballistic missile submarines. REUTERS/Luke MacGregor

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<p>China is estimated to have about 400 strategic and tactical nuclear weapons, and stocks of fissile material sufficient to produce a much larger arsenal.     



REUTERS/David Gray</p>

China is estimated to have about 400 strategic and tactical nuclear weapons, and stocks of fissile material sufficient to produce a much larger arsenal. REUTERS/David Gray

China is estimated to have about 400 strategic and tactical nuclear weapons, and stocks of fissile material sufficient to produce a much larger arsenal. REUTERS/David Gray

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<p>India has formally declared itself a nuclear weapon state. New Delhi is likely to have manufactured weapons-grade plutonium for at least 100 warheads.     



REUTERS/Army Handout</p>

India has formally declared itself a nuclear weapon state. New Delhi is likely to have manufactured weapons-grade plutonium for at least 100 warheads. REUTERS/Army Handout

India has formally declared itself a nuclear weapon state. New Delhi is likely to have manufactured weapons-grade plutonium for at least 100 warheads. REUTERS/Army Handout

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<p>North Korea tested its first nuclear explosive device in October 2006 and its second in May 2009.   

REUTERS/Stringer</p>

North Korea tested its first nuclear explosive device in October 2006 and its second in May 2009. REUTERS/Stringer

North Korea tested its first nuclear explosive device in October 2006 and its second in May 2009. REUTERS/Stringer

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<p>Pakistan is believed to have stockpiled approximately 580-800 kg of highly enriched uranium, sufficient amounts to build 30-50 fission bombs. According to the United States, China helped Pakistan by providing nuclear-related materials, scientific expertise and technical assistance.   



REUTERS/Stringer</p>

Pakistan is believed to have stockpiled approximately 580-800 kg of highly enriched uranium, sufficient amounts to build 30-50 fission bombs. According to the United States, China helped Pakistan by providing nuclear-related materials, scientific...more

Pakistan is believed to have stockpiled approximately 580-800 kg of highly enriched uranium, sufficient amounts to build 30-50 fission bombs. According to the United States, China helped Pakistan by providing nuclear-related materials, scientific expertise and technical assistance. REUTERS/Stringer

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<p>Israel is widely understood to possess a sizable nuclear arsenal but maintains a policy of nuclear ambiguity. Based on estimates of the plutonium production capacity of the Dimona reactor, Israel has approximately 100-200 advanced nuclear explosive devices. 
   


REUTERS/Jerry Lampen</p>

Israel is widely understood to possess a sizable nuclear arsenal but maintains a policy of nuclear ambiguity. Based on estimates of the plutonium production capacity of the Dimona reactor, Israel has approximately 100-200 advanced nuclear explosive...more

Israel is widely understood to possess a sizable nuclear arsenal but maintains a policy of nuclear ambiguity. Based on estimates of the plutonium production capacity of the Dimona reactor, Israel has approximately 100-200 advanced nuclear explosive devices. REUTERS/Jerry Lampen

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