All patrols are governed by five principles: planning, reconnaissance, security, control, and common sense (Training Circular (TC) 3-21.76, Ranger ...

During the Cold War, the U.S. built a nuclear-powered underground military facility under the ice. Archival video shows us how it was pulled off—and why it could never last.

Thanks for following our live page today. Before we go, here's a round-up of the key developments today: Speculation continues to mount over when potential peace talks between Russia and Ukraine ...