Sign in

John Drennan

@j-dren.bsky.social
43 followers 62 following 3 posts

Visiting Fellow, Europe in the World Programme, Egmont Institute | Robert A. Belfer International Affairs Fellow in European Security, Council on Foreign Relations | Nonresident Fellow, Transatlantic Dialogue Center

PostsRepliesMedia
John Drennan @j-dren.bsky.social · 23/09/2026
Maksym Skrypchenko and I argue for The National Interest that Washington and Kyiv should think bigger than one drone deal, instead building a defense-technology compact that prioritizes access to Ukraine’s battlefield experience and supporting ecosystem nationalinterest.org/feature/how-...
nationalinterest.org
How to Build a US-Ukraine Drone Powerhouse
Kyiv and Washington still have room to expand cooperation on drone innovation, production, and tactics.
000
John Drennan @j-dren.bsky.social · 24/07/2026
Check out my new report, which examines Ukraine's battlefield innovations, how Kyiv is reshaping the terms of its defense partnerships, and why military hardware transfers far more readily than the operational experience needed to make it work. tdcenter.org/2026/07/21/u...
tdcenter.org
The Arsenal of Experience: Ukraine’s Emerging Role as a Security Provider in Europe and Beyond
Transatlantic Dialogue Center (TDC) is a non-governmental and non-partisan think tank that provides high-quality policy advice to private and public clients. The network of our friends and partners in...
011
Reposted by John Drennan
Chicago Council on Global Affairs @global-affairs.bsky.social · 02/07/2026
"NATO 3.0 fails not because it asks Europeans to do more, but because it never defines what they are supposed to do more of, or why," Council Vice President of Research for Security and Defense @atabatabai.bsky.social and @j-dren.bsky.social write in @lawfaremedia.org. More analysis ⤵️
lawfaremedia.org
NATO 3.0: A Tagline in Search of a Concept
Force Posture Decisions Have Become Another Coercive Tool in the Trump Administration’s Alliance Management Toolkit
011
Reposted by John Drennan
Lawfare @lawfaremedia.org · 01/07/2026
"NATO 3.0 fails not because it asks Europeans to do more, but because it never defines what they are supposed to do more of, or why, and because it has made force posture an instrument of political coercion rather than strategic planning," writes @j-dren.bsky.social and @atabatabai.bsky.social.
lawfaremedia.org
NATO 3.0: A Tagline in Search of a Concept
Force Posture Decisions Have Become Another Coercive Tool in the Trump Administration’s Alliance Management Toolkit
1349
John Drennan @j-dren.bsky.social · 08/05/2026
@atabatabai.bsky.social and I examine how Ukraine-Gulf counter-drone cooperation may be the first visible node in a new network emerging among U.S. partners-one Washington didn't design and doesn't yet know how to engage. The U.S. should figure out how to be a proactive participant in that network.
051
Reposted by John Drennan
Lawfare @lawfaremedia.org · 01/05/2026
"Rather than fragmenting the EU and empowering nationalist governments, U.S. interventions have thus far helped further consolidate Europe’s political identity and commitment to greater strategic autonomy vis-a-vis the United States," writes @j-dren.bsky.social and @atabatabai.bsky.social.
lawfaremedia.org
U.S. Meddling in European Domestic Politics Is Backfiring
Hungary’s April election was the clearest test—and failure—of Trump’s Europe strategy.
27019
Reposted by John Drennan
Lawfare @lawfaremedia.org · 30/04/2026
On Rational Security, @sranderson.bsky.social sat down with @nkorpett.bsky.social, @atabatabai.bsky.social and Joel Braunold to talk through the week’s big national security news stories, including the war with Iran, the U.S.-European transatlantic relationship, and more. youtu.be/XOS-Kxz0K-Y
0173
Reposted by John Drennan
Lawfare @lawfaremedia.org · 26/03/2026
A pattern of U.S. policy swings across administrations in recent decades have altered how allies view U.S. credibility and engagement with NATO. @j-dren.bsky.social and @atabatabai.bsky.social explore how the alliance can function under persistent uncertainty.
lawfaremedia.org
The Transatlantic Relationship You Knew Is Gone
NATO can be recast, not restored.
54416
Reposted by John Drennan
Lawfare @lawfaremedia.org · 24/03/2026
On March 2, French President Emmanuel Macron laid out his vision for the future of nuclear deterrence in Europe. @atabatabai.bsky.social and @j-dren.bsky.social explore what this plan to decrease Europe's reliance on U.S. extended deterrence means for the transatlantic relationship.
lawfaremedia.org
The Europeanization of Deterrence
What Macron’s Ile Longue speech means for transatlantic nuclear strategy.
14310
Reposted by John Drennan
Lawfare @lawfaremedia.org · 13/02/2026
Trump’s attempts to dominate allies come with many costs and few benefits, write @atabatabai.bsky.social and @j-dren.bsky.social.
lawfaremedia.org
Understanding Trump’s Coercive Foreign Policy
Trump’s attempts to dominate allies come with many costs and few benefits.
17027
Reposted by John Drennan
Ariane Tabatabai @atabatabai.bsky.social · 05/02/2026
For this second installment in our @lawfaremedia.org series on Trump's coercive approach to NATO, @j-dren.bsky.social & I look at how Russia views the tensions within the alliance. The acute phase of the Greenland crisis may be over (for now), but Russia will keep benefiting from it.
012
Reposted by John Drennan
Lawfare @lawfaremedia.org · 05/02/2026
While the internal crisis within NATO over Greenland appears to have passed, the damage to the alliance's cohesion may have lasting impact—and directly benefit Russia. @j-dren.bsky.social and @atabatabai.bsky.social explore the resulting short- and long-term effects of the crisis.
lawfaremedia.org
NATO’s Loss Is Russia’s Gain
Russia is reaping the benefits while the United States undermines NATO from within.
14410
Reposted by John Drennan
Ariane Tabatabai @atabatabai.bsky.social · 29/01/2026
This is the first in a series of @lawfaremedia.org articles @j-dren.bsky.social and I have coming out that look at the implications of the administration's coercive approach to alliances in general and NATO in particular. Stay tuned:
02914
Reposted by John Drennan
Lawfare @lawfaremedia.org · 29/01/2026
The Trump administration's continued attacks on NATO may cause long term damage to U.S. security if allies downgrade their cooperation with the U.S. @j-dren.bsky.social and @atabatabai.bsky.social explain the benefits that NATO allies provide that would significantly harm U.S. security if lost.
lawfaremedia.org
The United States Without Europe
How a shattered NATO would undermine U.S. security.
97234
Reposted by John Drennan
Lawfare @lawfaremedia.org · 29/01/2026
On Lawfare Daily, @mollyroberts.bsky.social sat down with @atabatabai.bsky.social, and @j-dren.bsky.social to discuss the crisis over President Trump's threats to annex Greenland and its implications for the United States and NATO. www.lawfaremedia.org/article/lawf...
0136
Reposted by John Drennan
Lawfare @lawfaremedia.org · 04/12/2025
On Lawfare Daily, @atabatabai.bsky.social spoke to John Drennan and Matthew Sharp about New START, the last bilateral nuclear arms control treaty between the United States and Russia, the implications of its expiration in Feb. 2026, and where the arms control regime might go from here.
194