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

Military Commissions Resume At Guantanamo

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American Airstrikes Destroy Group Of ISIS Military Camps In Libya

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One of the 8,400 remaining U.S. troops in Afghanistan guards the bay of a CH-47 Chinook transport helicopter as it flies near Kabul. David Welna/NPR hide caption

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After 8 Years Of Unbroken War, Obama Hands Over Conflicts To Trump

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After Years Of War, Trump Stands To Inherit Ongoing Conflicts

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Rep. Mike Pompeo Questioned By Senate Panel In Bid To Become CIA Director

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Trump Praises WikiLeaks Founder In Debate Over Russian Hacking

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Four Iraqi commandos at the base were among those awarded medals by Defense Secretary Ash Carter during his visit earlier this month. David Welna/NPR hide caption

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Defense Secretary Ash Carter Predicts 'Tough Fight' Ahead To Retake Mosul

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Pentagon Chief Ash Carter Makes Unannounced Trip To Baghdad

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Trump's Pick For Defense Secretary Known For Independent Thinking

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Trump Presidency Casts Doubt Over Declassification Of CIA Torture Report

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Trump Appoints Michael Flynn, Mike Pompeo To Key National Security Posts

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The U.S. Naval Station at Guantanamo holds the U.S. prison known as "Gitmo." President Obama said when he took office in 2009 that he wanted to close the prison, but 60 prisoners remain. John Moore/Getty Images hide caption

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Trump Has Vowed To Fill Guantanamo With 'Some Bad Dudes' — But Who?

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A picture taken on April 20, 2010, shows a Russian nuclear-capable Iskander ballistic missile launcher during a military parade rehearsal outside Moscow. Russia transferred Iskander-M missile launchers within range of three Baltic states earlier this month. Alexander Nemenov/AFP/Getty Images hide caption

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'A Dangerous Situation' As U.S.-Russia Tensions Spill Over To Nuclear Pacts

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Next President To Face Challenges On Nuclear Weapons

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