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1:36
Besides low temperatures, humidity is also a deadly threat to warmth retention. The three-layer dres
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2:07
Why do submariners have strict height requirements?
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0:55
Kidney-shaped lunch box vs. square lunch box— which one gives you the upper hand?
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1:42
About how we want to apply battlefield "friend-or-foe identification" to combating counterfeits in s
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1:59
What? Even America's Big Ice has an elitist hierarchy?
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1:10
Can soldiers buy their own equipment? # Dragon Teeth # Tactics # Trivia
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1:15
Brothers, if you ever go to the United States, stay away from police officers wearing this kind of c
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1:31
Who is that person who can't even afford to offend the American police?
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