David Welna David Welna is NPR's national security correspondent.
David Welna 2010
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David Welna

What It's Like In The Demilitarized Zone That Divides North And South Korea

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News Brief: Mattis In Asia, Trump's Week, White Nationalists In Tennessee

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Mattis Calls For 'Denuclearization Of Korean Peninsula'

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Philippine President Rodrigo Duterte meets Defense Secretary Jim Mattis Oct. 24 at the 11th Association of Southeast Asian Nations (ASEAN) Defense Ministers' Meeting at the former Clark Air Base outside Manila. Dondi Tawatao/AFP/Getty Images hide caption

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Dondi Tawatao/AFP/Getty Images

With Mattis Trip To Philippines, Reminders Of Waning U.S. Influence In Region

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How China Is Making Moves To Be The Dominant Player In The Asian Pacific Region

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Mattis Meets With Duterte Ahead Of Trump's Trip To Philippines

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Trump May Put Congress On The Hook Over Iran Deal

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The Intermediate-Range Nuclear Forces Treaty Could Be In Trouble

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Why President Trump Has Exclusive Authority To Order A Nuclear Strike

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President Trump told the U.N. General Assembly Tuesday that the U.S. may have no choice but to "totally destroy" North Korea if forced to defend itself and its allies. Richard Drew/AP hide caption

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Richard Drew/AP

U.S. Bans Kaspersky Software For Federal Agencies Amid Security Concerns

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Settlement Reached In Case Against Pyschologists Who Designed CIA Torture Program

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