
Distinguished Fellow, Advisor to President @gmfus; Chair in Transatlantic Affairs @collegeofeurope; Dir Ian Lesser BV. Opinions mine.
Brussels, Belgium
Joined September 2018
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Ian Lesser retweeted
🇹🇷 What does the new US National Security Strategy mean for Türkiye?
🌍@ian_lesser's latest analysis explores how the strategy’s priorities—from a reduced US role in Middle East security to sharper transatlantic debates—could reshape Ankara’s choices and its engagement with NATO and Europe. It highlights both risks and openings for cooperation in a world of shifting alignments.
➡️ Read the piece: 👉 gmfus.org/news/turkiyes-stak…
Ian Lesser retweeted
On Monday, GMF Brussels hosted a conference together with the @PLintheEU and @PISM_Brussels, exploring the challenges of boosting the EU’s defence.
GMF’s @ian_lesser and Bart Szewczyk joined the two conference panels as speakers.
Key takeaways👇
🔹 Russia’s aggression and shifting US policy have forced EU states to rearm. Defence budgets are rising, but Europe still lags in innovation: only 4% of EU defence spending goes to R&D compared to 16% in the US.
🔹 With just 18% of procurement done jointly, Europe is still missing the economies of scale it needs. Aggregating demand would speed up production, lower costs, and give the industry the confidence to invest.
🔹 EU member states must support established defence giants while scaling start-ups that bring deep tech into military innovation. Bridging this gap is essential to shorten acquisition cycles to under 24 months.
🔹 Europe’s dependence on US and Chinese raw materials is unsustainable. Building resilient supply chains is critical if the EU wants to be ready to deter aggression by 2030.
🌍 GMF thanks our speakers, partners, and attendees for contributing to the discussion.
Ian Lesser retweeted
📓 In response to the overnight release of the Trump administration's 2025 National Security Strategy, GMF Distinguished Fellow @ian_lesser explained that “many Europeans will find this highly disturbing,” and that it sharpens existing concerns about the transatlantic relationship, Russia, and the war in Ukraine.
⤵️ Read full analysis in the @nytimes here: buff.ly/LO03xrE
A privilege and pleasure to have been present at the creation of #AtlanticDialogues. Look forward to the 2025 edition!
🌍 Hear the voices shaping the #AtlanticDialogues community!
📍 North America, #USA
📺 @ian_lesser, Vice President of @gmfus, has attended every edition of the Atlantic Dialogues, witnessing its growth over the years. He highlights how this international conference fosters a unique dialogue between the North and South of the Atlantic, and beyond, at a time when such conversations are more important than ever. #AD2025
🔗ad.policycenter.ma/
A pleasure to contribute to this terrific conversation!
Europe isn’t alone in facing an erosion of trust with the US. Lizza Bomassi, @Ross_Marangio, @PelayoCastroUE & @ian_lesser explore how partners around the world are adapting to this new reality.
Ian Lesser retweeted
Dall’Africa ai Caraibi, l’amministrazione Trump ha moltiplicato minacce e dichiarazioni, sorprendendo chi la considerava isolazionista
L'intervista di @LorenzoPiccioli a @ian_lesser
formiche.net/2025/11/cosi-tr…
My sincere thanks for the invitation and the good discussion!
Many thanks to @ian_lesser for guiding us through the intricacies of transatlantic ties and dynamics today 🇪🇺🇺🇸🇨🇦
From trade to tech, climate to security, this interesting module deepened our understanding of EU diplomacy in a shifting global landscape.
#EUDiplomacy
Ian Lesser retweeted
🚨 As drone sightings disrupt airports across Europe, the question of how to respond is becoming urgent.
In the @nytimes, GMF’s @ian_lesser compares the threat of drones to cyberattacks, where even small actors can cause outsized damage. The challenge for governments? Finding fast, cost-effective solutions to a risk that’s cheap, accessible, and increasingly disruptive.
📰 Read the article: buff.ly/B8pdXpn
Ian Lesser retweeted
It’s getting closer… 🚢✨
Soon we’ll welcome the Oostende, the first of our new mine countermeasure vessels.
Belgium and the Netherlands will each receive six of these state-of-the-art ships, designed to keep sea lanes open and safe for global trade. 🌍
📸 Spotted in August.
Ian Lesser retweeted
Honored to have contributed to @gmfus' compendium on #October7 and its global impact alongside @OzgurHisarcikli @kristinakausch @ian_lesser @DaliaZinaGhanem & Hermine Sam
gmfus.org/news/long-global-s…
Ian Lesser retweeted
In my piece, I discuss how the Hamas attack and Israel’s response overturned the Middle East’s shift to a more integrated regional order.
Below are six insights into the shifts the world has seen since Hamas’ attack against Israel two years ago,
by @ian_lesser , @DaliaZinaGhanem , @GabiAMitchell , @kristinakausch Hermine Sam and myself via @gmfus
gmfus.org/news/long-global-s…
Ian Lesser retweeted
🇮🇳🇪🇺🇺🇸 The 27th India Trilateral Forum, organized by GMF's @GarimaMo and the @SweMFA, begins today.
This two-day forum brings together senior policymakers, experts, and industry leaders from the U.S., Europe, and India for closed-door conversations on key issues shaping global cooperation.
🛡️This edition will focus on security, defense, and defense-industrial collaboration, exploring new opportunities to strengthen partnerships between the US, India, and Europe.
Great news! Congratulations and best wishes!
We are delighted to welcome Diego Ruiz Palmer to CSDS as a Distinguished Associate Fellow. Diego brings to our team decades of expertise from defence policy and, in particular, NATO. We cannot wait to start collaborating with Diego. Welcome!
More info
csds.vub.be/researcher/diego…
Ian Lesser retweeted
🛡️ "NATO has not yet invested in the kinds of technologies at the scale that would be needed to deal with that kind of a threat in a cost-effective way," GMF's @ian_lesser told NPR, of an EU defense ministers' meeting to discuss dealing with the emerging threat of isolated drone incidents in Europe.
buff.ly/DYC2ngD
Ian Lesser retweeted
İKV Başkanı Ayhan Zeytinoğlu ve beraberindeki heyet, German Marshall Fund Brüksel Sorumlusu Ian Lesser ile çalışma yemeğinde bir araya geldi.
A good new analysis in a wider Atlantic series by my colleague and friend Paul Isbell 👇👇👇
🌐 With global economic fragmentation accelerating and #liberalism under strain, can the #AtlanticBasin, where over 70% of #trade and 90% of #investment already stay within the region, become the liberal “second-best” to bridge the North–South divide?
policycenter.ma/publications…
Ian Lesser retweeted
💬 In her state of the union speech yesterday, European Commission President Ursula von der Leyen "made a powerful case for greater European sovereignty and greater European power in an increasingly insecure and competitive world," writes GMF's @ian_lesser.
Read his transatlantic take on the speech: gmfus.org/news/enemies-gates
Good new analysis from my colleague Hermine Sam 👇👇👇
🌍 "The US decision to slash foreign aid has highlighted two contrasting narratives around official development assistance (ODA). One, largely Western-led, frames the cuts as a humanitarian catastrophe in the making. The other, rooted in African and diaspora voices, views them as a long-overdue opportunity to sever colonial-like dependencies and reset Africa’s path toward economic transformation."
📖 GMF's Hermine Sam tackles the two viewpoints and next steps here: buff.ly/e9JxBtM
A pleasure to join for this conversation! Many thanks!
Great insights last week from @gmfus's @ian_lesser, who joined me and @HellenicLeaders members in Athens as we dug into the latest trends in the #Transatlantic relationship - from defense and security to trade and tariffs - while exploring what this could mean for #Greece.

























