Global Security

Our experts continue to provide the latest analysis on nuclear weapons and the nuclear threat.

Andrew Harnik/Getty Images

October 31, 2025

China Has the Most to Gain from New Nuclear Tests

Gregory Kulacki
East Asia Project Manager

photo of a US naval officer monitoring the air space around New York City; he has a phone in one hand and is pressing a button on a lit panel with the other hand. There are several displays on the desk in front of him and larger screens on the wall beyond the desk

US Navy/Getty Images

October 29, 2025

A House of Dynamite Gets It Right—But Here’s the Full Picture

Laura Grego
Research Director, Senior Scientist

photo of a nighttime nuclear ICBM test launch; amid the darkness, the missile appears to arc up and over the moon

Airman 1st Class Daniel Brosam/US Air Force

October 9, 2025

Five Things to Know Before Watching A House of Dynamite

Jennifer Knox
Policy & Research Analyst

group photo of advocates smiling after their success in getting RECA passed; they all wear matching yellow T-shirts that read, "We are the unknowing, unwilling, uncompensated victims of the Cold War"

Lilly Adams/UCS

October 6, 2025

After Decades, Relief for Some Harmed by the Nuclear Weapons Industry

Lilly Adams
Senior Outreach Coordinator

photo of four Chinese nuclear ICBMs on display during the country's 2025 Victory Day parade; soldiers stand guard in the foreground and a large building topped by many Chinese flags is in the background

Lintao Zhang/Getty Images

October 1, 2025

Could China’s New Nuclear Weapons Signal a New Era of Arms Control?

Robert Rust
China Analyst

A traditional ships compass sits in the foreground of a photo taken in the cockpit of a wooden sailboat.

Dylan Spaulding

September 29, 2025

Seeking a New Moral Compass on Nuclear Weapons Aboard the Golden Rule

Dylan Spaulding
Senior Scientist

photo of Kim Jong Un and Donald Trump seated and leaning in toward each other to shake hands. A row of alternating US and North Korean flags is in the background.

Dong-A Ilbo/Getty Images

September 23, 2025

How to Make the Next Trump-Kim Meeting a Success

Gregory Kulacki
East Asia Project Manager

Three different US ICBMs on display at an Air Force base under a cloudy sky

Michael Smith/Getty Images

September 17, 2025

It’s Time to Rethink US Nuclear Weapons Manufacturing

Dylan Spaulding
Senior Scientist

photo of a young smiling girl sitting on her father's shoulders and waving little US and Japanese flags

Win McNamee/Getty Images

August 26, 2025

Amid US-China Rivalry, What Do Asian Nations Really Want?

Robert Rust
China Analyst

black-and-white photo of Bertrand Russell standing at a table and reading aloud from notes he is holding, with an audience of numerous reporters writing notes inside a darkened hall with bright lights in the background

Douglas Miller/Keystone/Getty Images

July 8, 2025

The Russell-Einstein Manifesto: A Call to Avoid Nuclear War Resonates 70 Years Later

Dylan Spaulding
Senior Scientist

photo of Iranian foreign minister Javad Zarif and Chinese foreign minister Wang Yi shaking hands and posing for the camera in front of their nation's flags during a 2015 meeting

Lintao Zhang/Getty Images

July 8, 2025

What China’s Approach to Iran Tells Us About Its Foreign Policy

Robert Rust
China Analyst

photo of US negotiators on the left side of a table and Iranian negotiators on the right side; the two countries' flags stand at the head of the table and light in shining into the high-ceiling room from two large windows above the flags

US Department of State

June 26, 2025

The US Attack on Iran May Have Damaged Disarmament Efforts More Than Iran’s Nuclear Capabilities

Laura Grego
Research Director, Senior Scientist

photo of a gloved hand holding a plutonium pit, which appears to be a gray metallic disc

US Department of Energy

June 12, 2025

Ask a Scientist: New Plutonium Pits for Nuclear Weapons Are Not Needed

Guest Commentary

U.S. President Barack Obama presents the Presidential Medal of Freedom to physicist Richard Garwin during an East Room ceremony at the White House November 22, 2016 in Washington, DC.

Alex Wong/Getty Images

May 30, 2025

Memories of Dick Garwin

Lisbeth Gronlund
Former UCS Global Security Program Co-Director

photo of three workers in white protective gear with their backs to the camera, collecting samples from an underground chamber following a nuclear test

National Archives at College Park via Wikimedia Commons

May 13, 2025

Putting Science to Work for Security: A Call to Prevent Nuclear Testing

Dylan Spaulding
Senior Scientist

aerial photo of the large Sedan Crater created by an underground nuclear blast the Nevada Test Site; several smaller craters are in the desert floor in the background

May 7, 2025

How Science and Advocacy Ended Dangerous Nuclear Testing in the United States

Jennifer Knox
Policy & Research Analyst

photo of two Navajo women wearing traditional clothing, standing on a sand dune and watching over a group of sheep; on the horizon, several tall rock pinnacles reach up into the blue sky

Ivan Dmitri/Michael Ochs Archives/Getty Images

May 6, 2025

US Uranium Mining Legacy Still Harms the Navajo Nation

Chanese A. Forté
Scientist

Alex Wong/Getty Images

May 1, 2025

What’s at Stake in the Budget Reconciliation Process (And What You Can Do About It)

David Watkins
Director of Government Affairs, Climate & Energy Program

This older black and white photo shows Native Americans fishing for salmon at Celilo Falls on the Columbia River.

Russell Lee/Getty Images

April 9, 2025

Justice for Downwinder Communities in Washington

Elizabeth McClure
Kendall Fellow

photo of the United Nations General Assembly in session; on either side of the dais where two people are seated are two large display boards showing the results of a vote, and between the boards is the seal of the UN

Michael M. Santiago/Getty Images

April 8, 2025

Neither Global Development nor Nuclear Disarmament Happen Unilaterally

Robert Rust
China Analyst

Alex Wong/Getty Images

March 10, 2025

We Are Charting a Path for Science in the Trump Era

Gretchen Goldman
President & CEO of UCS

US President Trump and Chinese President Xi Jinping walk past rows of Chinese soldiers standing at attention holding rifles and wearing dress white uniforms

Thomas Peter-Pool/Getty Images

February 25, 2025

Can China and the United States Cooperate Under Trump 2.0?

Robert Rust
China Analyst

photo of the US Capitol set against a blue sky, with the US flag waving in the breeze

drnadig/Getty Images

February 25, 2025

Congress, and All of Us, Will Reckon with Budget Reconciliation This Year

David Watkins
Director of Government Affairs, Climate & Energy Program

photo of a doctor seated at a desk, wearing a lab coat, mask, and stethoscope, listening to the heartbeat of a young girl. The girl is standing with her back to the doctor, who is lifting the back of the girl's shirt in order to apply the stethoscope.

Gustavo Fring/Pexels

February 18, 2025

Why Federal Radiation Regulations Can No Longer Ignore Women and Girls

Chanese A. Forté
Scientist