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Conventionalizing Deterrence? U.S. Prompt Strike Programs and Their Limits

Studies
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Proliferation Papers
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Proliferation Papers, No. 52, January 2015
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About a decade ago, the U.S. started to examine options to develop and acquire Conventional Prompt Global Strike capabilities. This move fits in an effort to conventionalize deterrence, an effort initiated decades before and undertaken for profound and diverse motives. Although it has been renewed under the Obama administration, which aims to reduce the U.S. reliance on nuclear weapons, this ambition has resulted in very little concrete progress.

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Budget cuts to defense spending and technological obstacles have forced the Pentagon to scale back its plans in terms of conventional strategic strike programs. Despite these setbacks, ten years from now the U.S. may well possess a conventional prompt strike capability in its arsenal. As a consequence, this paper also highlights some longer-term, operational and strategic issues that might arise from a context of crisis or war in which prompt strike capabilities could be used, and attempts to shed new light on the potential values these capabilities might have for U.S. national security.

 

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978-2-36567-340-2

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Conventionalizing Deterrence? U.S. Prompt Strike Programs and Their Limits

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Author(s)
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Corentin BRUSTLEIN

Intitulé du poste

Research fellow, coordinator of the Security Studies Center and head of the Deterrence and Proliferation program

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 A soldier watching a sunset on an armored infantry fighting vehicle
Security Studies Center
Accroche centre

Heir to a tradition dating back to the founding of Ifri, the Security Studies Center provides public and private decision-makers as well as the general public with the keys to understanding power relations and contemporary modes of conflict as well as those to come. Through its positioning at the juncture of politics and operations, the credibility of its civil-military team and the wide distribution of its publications in French and English, the Center for Security Studies constitutes in the French landscape of think tanks a unique center of research and influence on the national and international defense debate.

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Deterrence and Proliferation
Accroche centre

The conflicts in Europe, Asia and the Middle East demonstrate a return of nuclear power to the balance of power. Arsenals are being modernized and expanded, while arms control is collapsing. This research program aims to analyze these phenomena.

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Fury from the Skies. A Strategic Analysis of Air Campaign against Iran

Date de publication
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Accroche

What is the outcome of Operations Roaring Lion (RL) and Epic Fury (EF), launched by Israel and the United States against the Islamic Republic of Iran on February 28, 2026?

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Finland: The Ally Who Came in from the Cold

Date de publication
10 April 2026
Accroche

Among all European countries, Finland is perhaps the one whose strategic culture and military model have changed the least since the end of the Cold War. Built after the end of the Second World War to deter a potential new Soviet invasion, this model enabled Finland to serve as an example of European rearmament.

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Stability under Pressure. A Pakistani View on Nuclear Deterrence after Pahalgam

Date de publication
24 June 2026
Accroche

The May 2025 India-Pakistan crisis after the Pahalgam attack has generated a familiar but incomplete debate: did nuclear deterrence work, or did it merely allow both sides to fight a limited war under the nuclear shadow? The better answer is that deterrence worked at the level at which it was designed to work. It prevented a general war and an uncontrolled vertical escalation, and kept nuclear weapons in the background. But it did not prevent India from attempting to carve out space for conventional action, nor did it prevent Pakistan from responding conventionally to restore deterrence credibility.

Rabia Akhtar
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Strategic Shift in NATO’s Support for Ukraine. A Study of NSATU and PURL Initiatives

Date de publication
04 June 2026
Accroche

This study analyzes a significant transformation in NATO’s practical support to Ukraine, marked by the establishment of the NATO Security Assistance and Training for Ukraine (NSATU) mission and the Prioritized Ukraine Requirements List (PURL) funding mechanism.

Iryna KRASNOSHTAN

How can this study be cited?

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Corentin BRUSTLEIN, « Conventionalizing Deterrence? U.S. Prompt Strike Programs and Their Limits », Studies, Proliferation Papers, Ifri, 14 January 2015.
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Conventionalizing Deterrence? U.S. Prompt Strike Programs and Their Limits