At the height of the Korean War in 1952, a budding young historian was drafted into the U.S. Army just as the Pentagon was organizing a top-secret, scientific expeditionary unit, the Transportation Arctic Group (TRARG). Consisting of 275 military members and a cluster of civilian scientists from the United States and other countries, TRARG was sent to Thule Air Force Base, located on the west coast of northern Greenland. Its ostensible purpose...