Operation Ivy Bells was one of the most sensitive American intelligence operations of the Cold War, built around wiretapping ...

Restricted by the Treaty of Versailles, Germany quietly pursued submarine development in secret during the interwar years. Through covert partnerships and hidden programs, early U-boat designs ...

The ocean depth is the last domain where America still has a clear military advantage over China. As battlefields fill with ...

SAN DIEGO (KGTV) — A retired U.S. Navy nuclear submarine commander is offering his perspective on Tuesday's torpedo attack that sank an Iranian warship in the Indian Ocean, the first time the U.S. has ...

LONDON—Britain’s military exposed a monthlong, secret Russian submarine operation carrying out “nefarious activity” against the U.K.’s critical undersea infrastructure like pipelines and ...

The U.S. Navy’s Submarine Force celebrated its 126th anniversary on Sunday. A birthday ball was held in Mashantucket, Conn., in the vicinity of Naval Submarine Base New London. General Dynamics ...

The Russian submarine shadowed by the Swedish Gripens was transiting the Kattegat, a strategic waterway linking the Baltic approaches with the North Sea system. Although the spotlight is currently on ...