Donald Trump posted to Truth Social on Saturday about the fate of two survivors of a "drug carrying submarine" that was sunk by U.S. airstrikes this week.

Newsweek’s Naveed Jamali recently went on a ballistic missile submarine, completing a mission to go behind the scenes of the nation's land, sea and air nuclear defenses.

NATO's chief said on Monday that there is a "lone and broken Russian submarine limping home from patrol" in the Mediterranean Sea.

Beneath the cold waves of the North Atlantic, NATO forces track unseen threats in an endless underwater chess match. From inside a German submarine to the skies aboard a U.S. P-8 Poseidon, this rare look reveals how the alliance hunts the world’s stealthiest predators.

May 9, 1941. German sailors plunge into the frigid waters of the North Atlantic as they abandon U-110, battered by British depth charges after an attack on an Allied convoy went badly wrong. Aboard HMS Bulldog,

A scathing new report on the cause of the Titan sub disaster found that the vessel was damaged on earlier dives and built with flawed engineering.

PUTIN’S submarine branded a potential “floating bomb” is creeping home through the English Channel under the close watch of Nato warships. The limping sub’s sighting near the UK comes

Inside the effort to deliver a ‘transformational improvement’ in how the US builds submarines, vital to preserving its undersea advantage.

Visitors can tour the vessel at the USS Silversides Submarine Museum in Muskegon, Michigan. The submarine was the site of a successful emergency appendectomy in enemy waters in 1942. Christmas Eve, 1942. The USS Silversides, a US Navy submarine, is ...