Unlike large vessels traveling on the ocean's surface or most other vehicles on the planet, military submarines do not have windows. A submarine's commander can't tell their helmsman to hang a right ...

L. David Marquet is a former US Navy Captain and author who served in the submarine force for nearly three decades. Marquet graduated from the US Naval Academy at the top of his class in 1981, during ...

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, ...

Because of the specialized nature of submarines, a distinct military strategy called anti-submarine warfare, or ASW, was created to counter them. Its primary objective is to defend ships and allied ...