The H.L. Hunley was the deadliest submarine of the Civil War—to its own crews. Built in Mobile in 1863, this 40-foot iron ...

Submarines from the Russian Navy and People’s Liberation Army Navy (PLAN) recently sailed together in the Sea of Japan, marking the two countries’ first joint submarine patrol. Two Kilo-class ...

Submarines were crucial to both the Allies and the Axis powers during World War II. The German Navy would build 1,156 U-boats ...

The Russian and Chinese navies are carrying out artillery and anti-submarine drills in the Sea of Japan as part of scheduled joint exercises, the Russian Pacific Fleet was quoted as saying on Sunday.

The Arkansas brings improved stealth features and greater firepower than many of its sister submarines—meaning it cannot get out into the water soon enough.