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Ukraine

Commuters in Ukraine, 2020.

Ukrainians approach life—and Kyiv’s 5,000 bomb shelters—with “reasonable carelessness”

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons

Exercise with Teikovsky missile unit. Credit: Ministry of Defence of the Russian Federation. CC BY 4.0.

How to mix sanctions and diplomacy to avert disaster in Ukraine

By David Cortright, George A. Lopez | Nuclear Risk, Nuclear Weapons

Ukrainian servicemen seen along the frontline outside of Svitlodarsk, Ukraine on January 30. (Photo by Stringer/Anadolu Agency via Getty Images)

How the demise of an arms control treaty foreshadowed Russia’s aggression against Ukraine

By Amy J. Nelson, Adam Twardowski | Analysis, Nuclear Risk

The A1 Verse: No gift to set a statesman right

By Thomas Gaulkin | Special Topics

US Deputy Secretary of State Wendy Sherman and Russian deputy Foreign Minister Sergei Ryabkov pose for pictures as they attend security talks on soaring tensions over Ukraine at the US permanent Mission, in Geneva, on January 10. "The conversation was difficult, it couldn't have been easy," Ryabkov was quoted as saying by the Interfax news agency after meeting Sherman during a working dinner in Geneva. (Photo by DENIS BALIBOUSE/POOL/AFP via Getty Images)

Putin’s demand for security guarantees: Not new and not to be taken literally, but not to be ignored

By Andrey A. Baklitskiy | Analysis, Nuclear Risk

The A1 Verse: How many the fictitious shores

By Thomas Gaulkin | Special Topics

2018 Moscow Victory Day Parade. Credit: Website of the President of the Russian Federation. Licensed under the Creative Commons Attribution 4.0. Accessed via Wikimedia Commons.

In Ukraine, Putin tries his hand at nuclear blackmail. Here are seven ways to thwart him.

By John Erath | Nuclear Risk, Nuclear Weapons, Opinion

Russian soldiers. Russian Federation. Credit: Jesse. Accessed via Flickr. CC BY-SA 2.0.

Is Russia preparing for war?

By Lauren Sukin | Nuclear Risk, Nuclear Weapons

Russian President Vladmir Putin. Accessed via Wikimedia Commons. Credit: www.kremlin.ru, Creative Commons Attribution 3.0 Unported.

Biden threatened harsh sanctions should Russia invade Ukraine. Putin may not be deterred.

By David Cortright | Nuclear Risk, Nuclear Weapons, Opinion

Open Skies aircraft taking off

Five reasons why the US should not withdraw from the Open Skies Treaty

By Anna Péczeli | Nuclear Risk

A Turkish Bayraktar TB2 drone.

Turkey’s military drones: an export product that’s disrupting NATO

By Dan Gettinger | Disruptive Technologies

Fiona Hill speaks to impeachment committee. Here’s what she previously said about Putin in the Bulletin.

By Dan Drollette Jr | Analysis