Chinese research vessels are intensifying seabed-mapping operations across the Indian Ocean and beyond, collecting ...

China is expanding a vast underwater sensor network designed to detect submarines before they can slip into the South China ...

The March 4 incident in the Indian Ocean marked the first time an American submarine had torpedoed an enemy vessel since the ...

Add Yahoo as a preferred source to see more of our stories on Google. Los Angeles-class fast-attack submarine USS Asheville (SSN 758) steams forward off the coast of Guam during a photo exercise, Dec.

Gordon Chang urged the United States to treat China as an "enemy combatant" Thursday, warning that Chinese submarines are operating "very close" to the U.S. homeland as Beijing reportedly expands its ...

For the first time since World War II, a US Navy submarine has sunk an enemy vessel in combat. Earlier this week, a US Navy fast-attack submarine torpedoed an Iranian warship in the Indian Ocean in an ...

The downing of an Iranian warship on Tuesday in the Indian Ocean by U.S. Navy forces marks the first time an American submarine has destroyed an enemy vessel in combat since the final days of World ...

Torsk (SS-423) departing the Portsmouth Naval Shipyard, August 1965. (Navy) A United States Navy submarine sank an Iranian ship with a single torpedo this week as the frigate was transiting the Indian ...