This week the Department of Energy posted the first declassification guidance for nuclear weapons-related information, known as the Tolman Committee reports, prepared in 1945-46. The Tolman reports were an early and influential effort to conceptualize the role of declassification of atomic energy information and the procedures for implementing it. Though the reports themselves were declassified in the […]
By Hans M. Kristensen The number of U.S. strategic warheads counted as “deployed” under the New START Treaty has dropped below the treaty’s limit of 1,550 warheads for the first time since the treaty entered into force in February 2011 – a reduction of 263 warheads over four and a half years. Russia, by contrast, […]
The arrival of the Borei SSBNs marks the first significant upgrade of the Russian Pacific Fleet SSBN force in more than three decades.
Security upgrades underway at U.S. Air Force bases in Europe indicate that nuclear weapons deployed in Europe have been stored under unsafe conditions for more than two decades. Commercial satellite images show work underway at Incirlik Air Base in Turkey and Aviano Air Base in Italy. The upgrades are intended to increase the physical protection […]
The Department of Energy issued twenty “declassification determinations” between April 2011 and March 2015 to remove certain specified categories of nuclear weapons-related information from classification controls. “The fact that a mass of 52.5 kg of U-235 is sufficient for a gun-assembled weapon” was formally declassified in a written decision dated August 19, 2014. The “total […]
Updated below In 2013, the Academy of Military Sciences of the People’s Liberation Army of China issued a revised edition of its authoritative, influential publication “The Science of Military Strategy” (SMS) for the first time since 2001. “Each new edition of the SMS is closely scrutinized by China hands in the West for the valuable […]
By Hans M. Kristensen Two suspected terrorists arrested by the Italian police allegedly were planning an attack against the nuclear weapons base at Ghedi. The base stores 20 US B61 nuclear bombs earmarked for delivery by Italian PA-200 Tornado fighter-bombers in war. Nuclear security and strike exercises were conducted at the base in 2014. During […]
By Muhammad Umar, On July 14, 2015, after more than a decade of negotiations to ensure Iran only use its nuclear program for peaceful purposes, Iran and the P5+1 (US, UK, Russia, China, France + Germany) have finally agreed on a nuclear deal aimed at preventing Iran from developing nuclear weapons. Iran has essentially agreed to […]
By Hans M. Kristensen The biggest surprise in the Pentagon’s latest annual report on Chinese military power is the claim that China’s ICBM force now includes the “multiple independently-targetable re-entry vehicle (MIRV)-equipped Mod 3 (DF-5).” This is (to my knowledge) the first time the US Intelligence Community has made a public claim that China has […]
By Hans M. Kristensen In a speech to the Review Conference of the Non-Proliferation Treaty in New York earlier today, U.S. Secretary of State John Kerry disclosed new information about the size of the U.S. nuclear weapons stockpile. Updated Stockpile Numbers First, Kerry updated the DOD nuclear stockpile history by declaring that the stockpile as of […]
By Hans M. Kristensen Is China increasing production of nuclear ballistic missile submarines? Over the past few months, several US defense and intelligence officials have stated for the record that China is planning to build significantly more nuclear-powered missile submarines than previously assumed. This would potentially put a bigger portion of China’s nuclear arsenal out […]
By Hans M. Kristensen Russian nuclear weapons have received a lot of attention lately. Russian officials casually throw around direct or thinly veiled nuclear threats (here, here and here). And U.S. defense hawks rail (here and here) about a Russian nuclear buildup. In reality, rather than building up, Russia is building down but appears to be […]