Content

Issue Brief

Aug 27, 2025

Navigating the new normal: Strategic simultaneity, US Forces Korea flexibility, and alliance imperatives

By Bee Yun Jo

The future of deterrence on the Korean Peninsula—and indeed, the wider Indo-Pacific region—will hinge on Seoul’s ability to reframe US force realignments not as unilateral disengagements but as catalysts for action.

Defense Policy Korea

New Atlanticist

Aug 26, 2025

Five questions (and expert answers) about where the US-South Korea alliance goes from here

By Atlantic Council experts

The US and South Korean presidents met on Monday in Washington to discuss a range of bilateral issues, from security to shipbuilding.

Korea Nuclear Deterrence

In the News

Aug 20, 2025

Kroenig in Foreign Policy urges Trump to play the nuclear card to end the war in Ukraine

By Atlantic Council

On August 18, Matthew Kroenig, Atlantic Council vice president and Scowcroft Center senior director, published an article in Foreign Policy titled “To Get Peace in Ukraine, Trump Should Play the Nuclear Card.” He argues that President Trump should ramp up nuclear threats as a negotiating strategy to end Russia’s war in Ukraine instead of increasing […]

Defense Policy Eastern Europe

Issue Brief

Jul 24, 2025

Five pillars for deterring strategic attacks

By Mark J. Massa, Alyxandra Marine

As its highest priority, the Department of Defense must deter strategic attacks on the United States. A five-pillar strategy could guide efforts to prevent nuclear and nonnuclear threats while ensuring resilience and readiness against large-scale nuclear attacks on the US homeland.

Defense Policy Defense Technologies

New Atlanticist

Jul 16, 2025

Reading between the lines of the new France-UK nuclear entente

By Léonie Allard

French President Emmanuel Macron and British Prime Minister Kier Starmer released a “truly historic” declaration on nuclear planning on July 10.

France Nuclear Deterrence

MENASource

Jul 7, 2025

Opportunity knocks on Netanyahu’s US visit after Israel-Iran war

By Shalom Lipner

Prevailing circumstances—albeit fraught with barriers—present the opportunity for all sides to declare victory.

Iran Israel

Report

Jul 3, 2025

The National Defense Strategy Project

By Atlantic Council experts

As the world enters a pivotal new phase in global security, the United States must not only respond to current challenges but also anticipate those on the horizon. 

Artificial Intelligence Defense Policy

MENASource

Jun 23, 2025

Pakistan is maintaining strategic clarity amid the Israel-Iran war

By Sahar Khan

Pakistan officials were quick to deny Iranian claims that Islamabad would engage in a nuclear response to a nuclear Israeli strike on Iran.

Iran Israel

New Atlanticist

Jun 12, 2025

Experts react: Israel just attacked Iran’s military and nuclear sites. What’s next?

By Atlantic Council experts

Our experts shed light on Israel’s major attack against Iran targeting its nuclear facilities and its implications for the region.

Conflict Defense Policy

New Atlanticist

Jun 11, 2025

Many nuclear experts agree that the US needs new capabilities. Now they need to convince the Pentagon.

By Paul Amato

Even as nuclear experts move toward a consensus on what the United States needs, they will need to make their case to a wider set of US decision makers.

Nuclear Deterrence Security & Defense

Experts