• Research
  • Strategic Europe
  • About
  • Experts
Carnegie Europe logoCarnegie lettermark logo
EUUkraine
  • Donate
{
  "authors": [
    "Ariel (Eli) Levite"
  ],
  "type": "legacyinthemedia",
  "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"
  ],
  "topics": [
    "Nuclear Policy",
    "Nuclear Energy"
  ]
}

Source: Getty

In The Media

Heading for the Fourth Nuclear Age

The roots of the nuclear order's unraveling can be traced to four distinct factors that have evolved over the last six decades: weaknesses in the original NPT formula, changes in the global distribution of power, nuclear weapons technology proliferation, and complacency with the current regime.

Link Copied
By Ariel (Eli) Levite
Published on Jan 22, 2009

Source: Ifri Security Studies Center Proliferation Paper No. 24

In a new Proliferation Paper published by the Institut Français des Relations Internationales' (Ifri) Security Studies Center, Ariel E. Levite examines the evolution of the global nuclear order since the advent of nuclear weapons in 1945 to present by breaking down the sixty-plus years of nuclear history into three analytically distinct "ages," each lasting roughly twenty years. By doing so, Levite traces back the roots of the current nuclear predicament to some early seeds of trouble which have gradually grown more profound. He attributes much of the unraveling of the nuclear order to:

  1. Certain inherent weaknesses in the original NPT formula;
     
  2. Changes in the global distribution of power since the codification of the nuclear order in the 1960s;
     
  3. The dissemination of nuclear weapon technology; and
     
  4. Complacency and subsequent disillusionment with the nuclear order since the early 1990s.

The paper further analyzes what could precipitate a new nuclear age around 2010. Levite argues that such a "fourth nuclear age" would likely be characterized by either a nuclear anarchy, which he believes has become the default option, or a more benign nuclear order manifested by lower numbers of weapons and stringent controls and restrictions on remaining nuclear arsenals and activities. He concludes by considering the more pressing requirements for regaining nuclear stability.

Click here for other Proliferation Papers published by the Institut Français des Relations Internationales' (Ifri) Security Studies Center.

About the Author

Ariel (Eli) Levite

Senior Fellow, Nuclear Policy Program, Technology and International Affairs Program

Levite was the principal deputy director general for policy at the Israeli Atomic Energy Commission from 2002 to 2007.

    Recent Work

  • Article
    Promoting Responsible Nuclear Energy Conduct: An Agenda for International Cooperation

      Ariel (Eli) Levite, Toby Dalton

  • Other
    Unpacking Trump’s National Security Strategy
      • Cecily Brewer
      • +18

      James M. Acton, Saskia Brechenmacher, Cecily Brewer, …

Ariel (Eli) Levite
Senior Fellow, Nuclear Policy Program, Technology and International Affairs Program
Ariel (Eli) Levite
Nuclear PolicyNuclear EnergyNorth AmericaUnited States

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 Europe

  • Commentary
    Strategic Europe
    The EU Needs a Third Way in Iran

    European reactions to the war in Iran have lost sight of wider political dynamics. The EU must position itself for the next phase of the crisis without giving up on its principles.

      Richard Youngs

  • Trump United Nations multilateralism institutions 2236462680
    Article
    Resetting Cyber Relations with the United States

    For years, the United States anchored global cyber diplomacy. As Washington rethinks its leadership role, the launch of the UN’s Cyber Global Mechanism may test how allies adjust their engagement.

      • Christopher Painter

      Patryk Pawlak, Chris Painter

  • Commentary
    Strategic Europe
    Europe on Iran: Gone with the Wind

    Europe’s reaction to the war in Iran has been disunited and meek, a far cry from its previously leading role in diplomacy with Tehran. To avoid being condemned to the sidelines while escalation continues, Brussels needs to stand up for international law.

      Pierre Vimont

  • Commentary
    Strategic Europe
    Macron Makes France a Great Middle Power

    France has stopped clinging to notions of being a great power and is embracing the middle power moment. But Emmanuel Macron has his work cut out if he is to secure his country’s global standing before his term in office ends.

      • Rym Momtaz

      Rym Momtaz

  • Commentary
    Strategic Europe
    Taking the Pulse: Can the EU Attract Foreign Investment and Reduce Dependencies?

    EU member states clash over how to boost the union’s competitiveness: Some want to favor European industries in public procurement, while others worry this could deter foreign investment. So, can the EU simultaneously attract global capital and reduce dependencies?

      • Rym Momtaz

      Rym Momtaz, ed.

Get more news and analysis from
Carnegie Europe
Carnegie Europe logo, white
Rue du Congrès, 151000 Brussels, Belgium
  • Research
  • Strategic Europe
  • About
  • Experts
  • Projects
  • Events
  • Contact
  • Careers
  • Privacy
  • For Media
  • Gender Equality Plan
Get more news and analysis from
Carnegie Europe
© 2026 Carnegie Endowment for International Peace. All rights reserved.