Nuclear Weapons

The Cold War is over, but the United States and Russia still keep thousands of nuclear weapons on alert and in reserve. Understand the issues with our technical and political analysis.


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Latest Nuclear Weapons Posts

Nuclear Hawks Take the Reins in Tokyo

, China project manager and senior analyst

Japan’s Defense Minister Itsunori Onodera and Foreign Minister Taro Kono shake hands with U.S. Secretary of State Rex Tillerson and Defense Secretary James Mattis before sitting down for U.S.-Japan security talks.

Donald Trump’s plan for a more muscular US nuclear posture got a ringing endorsement from the increasingly right-wing government of Japan. Not long after the Trump administration released its Nuclear Posture Review (NPR) in early February, Foreign Minister Taro Kono said he “highly appreciates” the new approach to US nuclear weapons policy, including the emphasis on low-yield nuclear options the United States and Japan can rely on to respond to non-nuclear threats.  Read more >

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Trump’s Nuclear Posture Review: Top Take-Aways

, co-director and senior scientist

The Trump administration’s Nuclear Posture Review (NPR), just released, lays out a policy that will make the use of nuclear weapons more likely and undercut US security.

It includes a wide range of changes to US nuclear weapons policy and calls for deploying additional types of nuclear weapons. Some of these changes can take place relatively quickly—within the time remaining in President Trump’s term—and others will take years to realize. In the latter case, however, political repercussions could occur well before completion of the effort. Read more >

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China and Trump’s Nuclear Posture Review

, China project manager and senior analyst

Chinese Vice Premier and Foreign Minister Qian Qichen signs the Comprehensive Nuclear Test Ban Treaty (CTBT) on September 24, 1996.

The Trump administration’s Nuclear Posture Review (NPR) repeats one of the most pervasive misconceptions about the current state of the US nuclear arsenal: that it does not compare well with the nuclear arsenals of Russia and China, which are supposedly engaged in nuclear modernization efforts the United States is neglecting.

China is making steady incremental improvements to its nuclear arsenal. But the gap between China and the United States is too wide to argue the United States is lagging behind in any meaningful way. We’ve laid out the details in a new white paper.

Read more >

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The Trump’s Adminstration’s Dangerous New Nuclear Policy

, Washington representative and senior analyst

Last night the Huffington Post released a draft version of the Trump administration’s Nuclear Posture Review, a deeply dangerous document that makes nuclear war more likely. UCS has a press statement on the draft, and below is a compilation of some additional quick thoughts on the draft, with more to come. Read more >

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Japan’s Role in the North Korea Nuclear Crisis

, China project manager and senior analyst

Japanese Prime Minister Yukio Hatoyama (second from left) consults with US President Barack Obama during a 2010 summit on nuclear security.

During a recent trip to Japan I had the opportunity to discuss Japan’s role in the current North Korean nuclear crisis with Yukio Hatoyama, a former prime minister. He led the Democratic Party of Japan (DPJ) to victory in September 2009, becoming the only Japanese politician to defeat the ruling Liberal Democratic Party (LDP) at the polls since end of the Second World War.  Read more >

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