September 12, 2026
The enduring legacy of 9/11, with former Defense Secretary Mark Esper
This week marks 25 years since 9/11—the deadliest terror attack the world has ever seen and a defining moment in American history. The attacks transformed US politics and national security. The war on terror became the organizing principle of American foreign policy. Former Secretary of Defense Mark Esper joins Ian Bremmer on the GZERO World Podcast to reflect on the day that forever changed how Americans thought about national security, and how the United States wielded its enormous power around the world.
How much did we learn from the post-9/11 era and do we risk repeating the same mistakes? 25 years after the US launched its war on terror, America is once again fighting a war in the Middle East without a clear endgame or exit strategy. The United States is on the back foot in its war with Iran, Esper says. The original goal of getting Tehran to the negotiating table about its nuclear program isn’t even being discussed anymore. And meanwhile, the United States is dropping the ball on countering its biggest existential threat: China.
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