"a US Army unit" . "1866" . . . "Experimental" . . . "Camel Corps" . "U.S. Camel Corps" . "United States Camel Corps" . . . . . . . "1856" . . . . "United States Camel Corps" . . "venture to bring camels" . . "1856" . "a real, failed attempt by the American army to use camels" . . .