The sinking of an Iranian warship by a US Navy submarine off the coast of Sri Lanka this week is something a US sub hasn’t done in more than 80 years and is another indication that Washington’s war with Tehran is taking on a breadth also not seen in decades.

Defense Secretary Pete Hegseth calls Iranian warship sinking a message that 'gloves are off' as U.S. nuclear submarine demonstrates maritime dominance with torpedo strike.

This photo, provided by the Navy, shows the 3,000-ton ROKS Ahn Mu departing from a naval base in the southeastern port city of Jinhae to take part in a joint antisubmarine drill with the U.S. Navy on Nov. 4. [YONHAP] The Korean Navy said Monday it will ...

The United States has long considered Iranian naval ships a serious threat, even as the country’s nuclear and missile programs dominate discussions of its military capabilities.