Britain's mighty fleet of fearsome new nuclear submarines, dubbed the Royal Navy's future 'silent enforcers', will feature separate cabins for female sailors, an on-board gym and study room for ...

The U.S. Navy has relied on submarines as an important part of its naval power since the invention of the Turtle, the first military sub, in 1775. Over the years, submarine technology improved ...

Sailors aboard the Virginia-class fast attack submarine Iowa man the rails during a commissioning ceremony in Groton, Connecticut, on Saturday. (John Narewski/U.S. Navy) The Navy formally ...

The rain-soaked event featured many Navy officials, including Navy Secretary John Phelan, hosting his first submarine commissioning. Several Iowa politicians were also in attendance, including ...