Submarines were among the most dangerous military occupations during World War II, with the U.S. Navy losing 52 submarines and 3,500 submariners—a 20% casualty rate.
The British Royal Navy's Astute-class submarines may now outshine the U.S. Navy’s Virginia-class subs, raising questions about the American naval shipbuilding trajectory.
Since 2000, at least 14 expedition crews have unsuccessfully tried to find the final resting place of the HMS Trooper, but the ill-fated World War II submarine has finally been located.