Read our breaking Ukraine coverage

Russian Strategic Missile Forces on the road in a military convoy

Nuclear Notebook: How many nuclear weapons does Russia have in 2022?

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons
army soliders with a helicopter in the background

US Army plan to combat climate change lacks the fighting spirit

By Neta C. Crawford | Analysis, Climate Change
Dolphin. Credit: טל שמע. CC BY-SA 4.0. Photo accessed via Wikimedia Commons.

How dolphins protect the US nuclear arsenal

By Lauren Sukin | Nuclear Risk, Nuclear Weapons
A loitering munition.

Russia may have used a killer robot in Ukraine. Now what?

By Zachary Kallenborn | Disruptive Technologies
Herbert Lin

Responding to a Russian demonstration of nuclear muscle-flexing

By Herbert Lin | Analysis, Nuclear Weapons

In striking Ukraine, Russia also hit nuclear arms control

By Petr Topychkanov | Nuclear Risk, Nuclear Weapons

The A1 Verse: Our world in stupor lies

By Thomas Gaulkin | Special Topics

Tacit rules to avoid a NATO-Russia war

By Steven Pifer | Nuclear Risk, Nuclear Weapons, Opinion

How to avoid nuclear catastrophe—and a costly new arms race

By Daryl G. Kimball | Analysis, Nuclear Weapons
Russian ambassador to the United Nations.

Russia amplifies bioweapons claims at the United Nations Security Council

By Matt Field | Biosecurity
Public health lab in Georgia.

Russian nuclear and biological disinformation undermines treaties on weapons of mass destruction

By Milton Leitenberg | Biosecurity, Chemical Weapons, Nuclear Weapons

Read the fine print: Russia’s nuclear weapon use policy

By David Holloway | Nuclear Risk, Nuclear Weapons
Russian Strategic Missile Forces on the road in a military convoy

Nuclear Notebook: How many nuclear weapons does Russia have in 2022?

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

army soliders with a helicopter in the background

US Army plan to combat climate change lacks the fighting spirit

By Neta C. Crawford | Analysis, Climate Change

A loitering munition.

Russia may have used a killer robot in Ukraine. Now what?

By Zachary Kallenborn | Disruptive Technologies

Russian ambassador to the United Nations.

Russia amplifies bioweapons claims at the United Nations Security Council

By Matt Field | Biosecurity

jet planes in flight

Sure, deter China—but manage risk with North Korea, too

By Ankit Panda | Analysis

Dolphin. Credit: טל שמע. CC BY-SA 4.0. Photo accessed via Wikimedia Commons.

How dolphins protect the US nuclear arsenal

By Lauren Sukin | Nuclear Risk, Nuclear Weapons

The A1 Verse: Our world in stupor lies

By Thomas Gaulkin | Special Topics

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