America’s network of alliances is often seen as one of its most valuable assets. But is it fit for purpose in a new era?
By Christopher Preble • Kelly A. Grieco • Emma Ashford
Brian Eyler and Regan Kwan
Human Security & Governance
Asia & Indo-Pacific
Steve Brock and Andrew Oros
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If America’s alliances are the foundation of its global power, why is it harder than ever to define who counts as an ally—and whether those relationships actually serve U.S. security and prosperity?
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Four Stimson experts reexamine American alliances and confront key questions on alliance strategy, influence, and power.
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The Trialogue
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Federico Petroni, senior analyst at Limes, Italy’s leading geopolitical journal, joins the Trialogue to discuss Europe’s anger over the U.S. attack on Iran, NATO’s fraught future, Italy’s Mediterranean strategy, and its regional rivalries with France and Turkey
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The Net Assessment
On this show, Melanie, Chris, and Zack consider whether the porcupine strategy that Taiwan is currently implementing is the best plan to deter or defend against China. What could Taiwan be doing better, and how can the United States and other friendly countries help? And have we learned any lessons from the situation in the Strait of Hormuz that are relevant to a Taiwan conflict?
Christopher Preble | Melanie Marlowe et. al
Christopher Preble | Melanie Marlowe et. al
Listen Now - 52 Minutes
Christopher Preble | Melanie Marlowe et. al
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Events
Upcoming Event | Tune in Today
Join us Tuesday, May 5 to explore the state of U.S. alliances in a showcase event from Stimson’s Assessing American Alliances project.
- May 5, 2026
- 1:00 PM - 2:00 PM (US Eastern)
Upcoming Event
- May 7, 2026
- 2:00 PM - 3:00 PM (US Eastern)
- Online and In-Person
Upcoming Event
- May 11, 2026
- 3:30 PM - 5:00 PM (US Eastern)
- Online and In-Person
Upcoming Event
- May 13, 2026
- 9:00 AM - 12:00 PM (US Eastern)
- Online and In-Person
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