The Army's research facility includes a permafrost tunnel — about a third of a mile long — that has Ice Age-era animal bones jutting out from the walls.
The Pentagon chief also stressed trilateral cooperation with Tokyo and Seoul is crucial for regional stability even as South Korea is in political turmoil.
A new Marine Corps program aims to enhance lethality by using wearable data to improve every area — from sleep and stress level control to marksmanship.
Exemption loopholes in military conscription requirements were taken to heart — and midsection — when one man intentionally put on more than 44 pounds.