Army Rangers Poster 22"x15"......."Sua Sponte" (Of Their Own Accord).......You Can Run But You Will Die Tired......-----------T­he U.S. Army Rangers are an oddity of the U.S. military special operations forces. Though they can trace their lineage as far back as colonial times, they didn't become a permanent presence in the military until the 1970s. Called to duty, their original purpose was to complete a mission and then disband. The Rangers are known for their skill at remaining undetected in a war. If you're in a combat situation and you see a Ranger, most likely he's already spotted you. There's no telling how long he's been observing you, and what's more, by the time you detect a Ranger, you're probably too late.