Giant vehicles were used to transport supplies to Camp Century, a U.S. military base in Greenland, shown in June 1959. (Pictorial Parade/Getty Images) As the threat of nuclear war loomed during the ...

Add Yahoo as a preferred source to see more of our stories on Google. Giant vehicles were used to transport supplies to Camp Century, a U.S. military base in Greenland, shown in June 1959. (Pictorial ...

As the threat of nuclear war loomed during the Cold War, the U.S. Army hatched a top secret plan to conceal hundreds of missile launchers on rail lines hidden beneath the thick ice sheets of Greenland ...