1. Counterterrorism goes remote

Photo illustration of an American soldier looking through binoculars with images of the destroyed Twin Towers in the background

Photo illustration: Sarah Grillo/Axios. Photos: Wakil Kohsar, Chris Hondros/Getty Images

Twenty years after 9/11, U.S. counterterrorism strategy relies more on drones in the air than boots on the ground.

Why it matters: The days of a massive military presence to battle international terrorists are over. President Biden now plans to combat terror groups in Afghanistan from "over the horizon," and warns that the threat has "metastasized" beyond Afghanistan and al-Qaeda.

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