Explainer: al-Qaeda’s evolution 25 years after 9/11 | The BriefBrief
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Explainer: al-Qaeda’s evolution 25 years after 9/11

Filed: Sep 10, 2026 at 8:17 PM ET
Summary: Twenty-five years after the Sept. 11 attacks, an explainer says al-Qaeda’s profile rose after the Afghanistan invasion, spawning affiliates and inspiring attacks worldwide. It notes major setbacks, including Osama bin Laden’s killing in 2011 and Islamic State’s emergence as a rival, while saying al-Qaeda still supports and inspires terrorists in multiple regions, especially Africa.
WHO: Experts
WHAT: Explainer on al-Qaeda’s losses, dislocation, affiliate expansion, and continued influence since Sept. 11.
WHEN: Sep 10, 2026 at 3:31 PM ET
WHERE: Location not specified
WHY: Part of ongoing military operations.

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