George Perkovich
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}Source: Getty
Book Review: The Long Shadow: Nuclear Weapons and Security in 21st Century Asia
Since acquiring atomic weapons, India, Pakistan and North Korea have not engaged in major warfare. But nuclear deterrence alone does not buy peace — diplomacy must keep the balance.
Source: Nature

By the mid-1970s, China, Israel and India had nuclear explosives, and Pakistan and South Africa were preparing to join them. These nations treated nuclear weapons differently. They built relatively few, did not deploy them for immediate use and kept them largely out of political view. South Africa disarmed in the early 1990s, and North Korea became nuclear-armed. Of the nine countries that have nuclear weapons today, the United States and Russia are hardly typical.
Read the full article in Nature.
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, and is leading a study on nuclear signaling in the 21st century.
- 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
- Demystifying the Nuclear ThresholdPaper
The nuclear weapons threshold is increasingly important for proliferation strategy and policy. Policymakers should better understand the implications of the threshold phenomenon in the current international security environment and plausible strategies to deal with the growing challenge that it presents.
Ariel (Eli) Levite, Toby Dalton
- Nuclear Weapons and the Future of American PowerPaper
It seems likely that, no matter what, the power of the U.S. nuclear arsenal will face erosion, not least in the credibility of its commitments to defend allies and the political durability of those alliances.
James M. Acton, Ankit Panda
- Threading the Needle: India’s Path Forward with ChinaPaper
After the chill in ties between 2020 and 2024 that brought India–China relations to their lowest point in several decades, the two countries have engaged each other afresh. This paper argues that there are predominantly four imperatives guiding India’s approach to China, and they exist in an order of priority.
Saheb Singh Chadha
- President Lee Jae Myung: A Year in PowerCommentary
President Lee marked his first year in office after one of the most tumultuous periods in South Korean politics. Though Lee has enjoyed a high approval rating, a large majority in the National Assembly, and foreign policy victories, Lee and his party’s political fortunes depend on generating economic growth, learning the right lessons from the recent local elections, and managing contentious factional strife within his political base.
Chung Min Lee
- The Latest Iran Deal Ignores the Lessons of the PastCommentary
By burying disagreements in imprecision, the new deal risks same fate as its predecessors.
James M. Acton