WATCH: Soldiers from Army Special Forces 10th Group enter an urban maze, “Going Dark” while a heat-seeker tracks them from above.

WATCH: Soldiers from Army Special Forces 10th Group enter an urban maze, “Going Dark” while a heat-seeker tracks them from above.
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by Robert M. Kurtz Excerpted from Mercenaries, Gunslingers, and Outlaws: Two Years as a Security …