Hagel Resigns, Says 'It's Been the Greatest Privilege of My Life'

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Richard Engel reunites with 88-year-old who survived Russian attacks
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Horrors inside Mariupol show stunning toll of war
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Navy desertions increase amid growing concerns over suicide and mental health
02:47
Russia parades surrendering Ukrainian fighters through Mariupol
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Finland, Sweden officially submit applications to join NATO
02:22
Defense official: 'Our service members have encountered unidentified aerial phenomenon'
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War Games: The Battle for Taiwan
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Full Panel: What China can learn from Ukraine
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US House passes $40 billion aid package for Ukraine
02:47
Marine surprises younger brother after pandemic delays return stateside
01:21
Navy addresses morale concerns after several suicides on USS George Washington
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Watch Air Force mom administer oath of office to her own daughter
06:33
US intelligence helped Ukraine sink Russian vessel Moskva, officials say
02:43
Service members sue 3M over 'dangerously' faulty military earplugs
06:19
Former U.S. Marine creates team of special operations vets to train Ukrainian soldiers
04:14
Ukrainian civilians make dire escape from Mariupol steel plant
02:19
How ‘Mission: Breakfast’ boosts morale at Hawaii military base
02:42
Ukrainians rescued from Mariupol steel plant but others remain trapped
02:07
Johnnie A. Jones, first black Warrant officer in US Army, dies at 102
02:17
NBC News Exclusive: How military equipment travels from Dover Air Force Base to Ukraine
02:30

UP NEXT
Richard Engel reunites with 88-year-old who survived Russian attacks
03:04
Horrors inside Mariupol show stunning toll of war
02:43
Navy desertions increase amid growing concerns over suicide and mental health
02:47
Russia parades surrendering Ukrainian fighters through Mariupol
02:12
Finland, Sweden officially submit applications to join NATO
02:22
Defense official: 'Our service members have encountered unidentified aerial phenomenon'
03:45