• Research
  • Emissary
  • About
  • Experts
Carnegie Global logoCarnegie lettermark logo
DemocracyIran
  • Donate
{
  "authors": [
    "James M. Acton",
    "Nicholas Blanchette"
  ],
  "type": "legacyinthemedia",
  "centerAffiliationAll": "dc",
  "centers": [
    "Carnegie Endowment for International Peace"
  ],
  "collections": [
    "U.S. Nuclear Policy",
    "Entanglement"
  ],
  "englishNewsletterAll": "ctw",
  "nonEnglishNewsletterAll": "",
  "primaryCenter": "Carnegie Endowment for International Peace",
  "programAffiliation": "NPP",
  "programs": [
    "Nuclear Policy"
  ],
  "projects": [],
  "regions": [
    "North America",
    "United States",
    "Middle East",
    "Israel",
    "North Africa",
    "Egypt"
  ],
  "topics": [
    "Foreign Policy",
    "Nuclear Policy",
    "Arms Control"
  ]
}

Source: Getty

In The Media

The United States’ Nuclear and Non-Nuclear Weapons Are Dangerously Entangled

New evidence from the Yom Kippur War shows how growing entanglement between nuclear and non-nuclear weapons could lead to dangerous escalation spirals to nuclear war.

Link Copied
By James M. Acton and Nicholas Blanchette
Published on Nov 12, 2019
Program mobile hero image

Program

Nuclear Policy

The Nuclear Policy Program aims to reduce the risk of nuclear war. Our experts diagnose acute risks stemming from technical and geopolitical developments, generate pragmatic solutions, and use our global network to advance risk-reduction policies. Our work covers deterrence, disarmament, arms control, nonproliferation, and nuclear energy.

Learn More

Source: Foreign Policy

In October 1973, an unreliable radiation detector could have caused the end of the world. The setting was the Yom Kippur War between Israel and a coalition of Arab states, and the superpowers found themselves being sucked into the conflict. In the war’s febrile final days, the United States detected what appeared to be radiation from a Soviet freighter headed for Egypt and concluded—almost certainly incorrectly—that Moscow was transferring nuclear warheads to Cairo. Partly in response, on Oct. 24, Washington placed its nuclear forces on a global alert for only the fourth time in history—a step it has taken only twice since. The U.S. alert prompted the Soviet Union to reportedly issue a preliminary order to begin the alerting of its own nuclear forces.

This chain of events, which could have culminated in a nuclear war, provides a timely warning. The United States’ ability to detect and track nuclear warheads has improved immeasurably over the last 46 years, making an exact replay of 1973 unlikely. However, growing entanglement between nuclear and nonnuclear weapons is exacerbating closely related dangers. In particular, nuclear-armed states are relying ever more heavily on dual-use weapons, which can accommodate nuclear or nonnuclear warheads, thus exacerbating the risk that one side might wrongly conclude that another had deployed nuclear weapons. In a crisis or conflict, the result could be an escalation spiral that, unlike in 1973, spins all the way to nuclear devastation...

Read Full Text 

This article was originally published by Foreign Policy.

About the Authors

James M. Acton

Jessica T. Mathews Chair, Co-director, Nuclear Policy Program

Acton holds the Jessica T. Mathews Chair and is co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace.

Nicholas Blanchette

Former Research Assistant, Nuclear Policy Program

Nicholas Blanchette was a research assistant in the Carnegie Nuclear Policy Program.

Authors

James M. Acton
Jessica T. Mathews Chair, Co-director, Nuclear Policy Program
James M. Acton
Nicholas Blanchette
Former Research Assistant, Nuclear Policy Program
Foreign PolicyNuclear PolicyArms ControlNorth AmericaUnited StatesMiddle EastIsraelNorth AfricaEgypt

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

  • Shadowed figure lighting grocery store shelves
    Commentary
    Emissary
    Five Years After His Power Grab, Tunisia’s President Has Only Achieved Failure

    Saied’s main accomplishment has been to destroy a decade’s worth of democratic progress.

      • Sarah Yerkes

      Sarah Yerkes

  • Port cranes at sunset
    Commentary
    Emissary
    The Drone Attack on Egypt and the Widening Middle East War

    The targeting of Damietta Port appears to be more than a mere security message.

      Amr Hamzawy

  • Commentary
    "I Don’t Think Trump Wants to Pull America Out of NATO"

    Does Donald Trump want to redraw the map of the world? Historian and geopolitical thinker Stephen Wertheim tries to parse the logic behind current American foreign policy

      Stephen Wertheim

  • Commentary
    Sada
    The Channels of China’s Currency Promotion in Gulf Markets

    Is the Gulf moving beyond the dollar? This article examines how China is expanding the renminbi's role across Gulf markets, what that means for regional finance, and why the future of global currencies is more complex than the de-dollarization debate suggests.

      Andrew Bonney

  • Commentary
    Strategic Europe
    Letter from the Editor: Europe Takes Two Steps Forward But One Step Back

    As we close out another season of Strategic Europe, it is worth taking stock of the deep shifts underway.

      • Rym Momtaz

      Rym Momtaz

Get more news and analysis from
Carnegie Endowment for International Peace
Carnegie global logo, stacked
1779 Massachusetts Avenue NWWashington, DC, 20036-2103Phone: 202 483 7600
  • Research
  • Emissary
  • About
  • Experts
  • Donate
  • Programs
  • Events
  • Blogs
  • Podcasts
  • Contact
  • Annual Reports
  • Careers
  • Privacy
  • For Media
  • Government Resources
Get more news and analysis from
Carnegie Endowment for International Peace
© 2026 Carnegie Endowment for International Peace. All rights reserved.