George Perkovich
{
"authors": [
"George Perkovich"
],
"type": "other",
"centerAffiliationAll": "dc",
"centers": [
"Carnegie Endowment for International Peace"
],
"collections": [
"U.S. Nuclear Policy"
],
"englishNewsletterAll": "ctw",
"nonEnglishNewsletterAll": "",
"primaryCenter": "Carnegie Endowment for International Peace",
"programAffiliation": "NPP",
"programs": [
"Nuclear Policy"
],
"projects": [],
"regions": [
"North America",
"United States",
"Caucasus",
"Russia"
],
"topics": [
"Nuclear Policy"
]
}Source: Getty
The Diminishing Utility and Justice of Nuclear Deterrence
Recent developments in international security that narrow the utility of nuclear weapons in deterring war may alter the role nuclear weapons play in the dialogue between the imperatives of war prevention and justness.
Source: Thinking About Strategy

"It cannot be right to acquiesce uncritically for the rest of human history, in a system that maintains peace between potential adversaries partly by the threat of colossal disaster. Any serious moral stance must recognize a duty, alongside that of striving to reduce the costs and risks of nuclear armouries and maximizing their war-prevention benefits so long as they continue to exist, to work towards a world in which security can be maintained without incurring at all the burdens which they entail."1
The moral stance to which Quinlan referred has much to do with the doctrine of Just War. Indeed, in 2007 Quinlan and Charles Guthrie published a monograpgh on the topic: Just War: The Just War Tradition: Ethics in Modern Warfare. This continued Sir Michael's long effort to reconcile doctrines and policies of nuclear deterrence with ethical principles he cherished as a conscious Catholic.
The present essay seeks to extend the dialogue between the imperatives of war prevention - specifically the role of nuclear deterrence in it - and justness. In doing so I look beyond the ethical tradition that Sir Michael explored so intently and thoughtfully. I draw briefly on research in evolutionary biology, psychology and politics to widen the meaning and importance of justice, while reflecting on recent developments in international security that narrow the utility of nuclear weapons in deterring war. I conclude by suggesting that these new perspectives add weight and feasability to the imperative that Quinaln recognized to work toward a world without nuclear weapons.
1. Michael Quinlan, Thinking about Nuclear Weapons, Oxford University Press, 2009, p. 54.
About the Author
Japan Chair for a World Without Nuclear Weapons, Senior Fellow
George Perkovich is the Japan Chair for a World Without Nuclear Weapons and a senior fellow in the Carnegie Endowment for International Peace’s Nuclear Policy Program. He works primarily on nuclear deterrence, nonproliferation, and disarmament issues.
- How to Assess Nuclear ‘Threats’ in the Twenty-First CenturyPaper
- “A House of Dynamite” Shows Why No Leader Should Have a Nuclear TriggerCommentary
George Perkovich
Recent Work
Carnegie does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.
More Work from Carnegie Endowment for International Peace
- The U.S. and China Need an AI Hotline. Here’s How to Build It.Commentary
It should address the shortcomings of previous crisis communication efforts and adapt to the demands of frontier AI.
Lucy Luo
- The UN Isn’t Declining. It’s Decomposing.Commentary
Washington’s decision to support some UN functions while letting others wither is pulling the organization apart at the seams.
Stewart Patrick, Theodore Zaritsky
- 2026 Carnegie California AI SurveyPaper
While there are notable demographic, economic, and geographic divides over AI, there is also substantial alignment between Republicans and Democrats.
- +2
Ian Klaus, Mark Baldassare, Rachel George, …
- Putin Has Been a Hindrance, Not a Help, to United Russia’s Election CampaignCommentary
Russia’s ruling party would have benefited from Putin appearing as its distant patron, but as an active frontman imposing his views on the public, he has done nothing but harm both the party’s election campaign and the ruling system overall.
Andrey Pertsev
- What Would Need to Happen to Slow AI Development?Commentary
AI capabilities are moving fast. Most institutions—including governments—can’t keep up.
Anton Leicht, Scott Singer