India and Russia have reportedly signed a $3 billion lease agreement for a nuclear-powered attack sub today.

India and Russia are set to sign a $3 billion lease agreement for a nuclear-powered attack sub on March 7, according to local media reports.

A Swedish shipyard’s troubles and Australia’s quest for new submarines.

Since 1991, five of seven countries with a claim in the South China Sea have purchased at least one attack submarine.

China's quantum lead may have important implications for its SSBN force.

U.S. intelligence has detected a large, new submarine under construction: the Sinpo-C.

Japan's Mitsubish-Kawasaki consortium has received an RFI from the Indian Navy. Where does it lead?

The two new corvettes were commissioned on December 12.

China is launching one new corvette every six weeks.

China's corvette construction program continues.

Four of the subs will be constructed in China and the remaining four in Pakistan.

The new ship’s main area of responsibility will be the disputed Paracel Islands in the South China Sea.

Undersea nuclear deterrence in the Indian Ocean is here to stay.

The Diplomat's defense editors discuss Australia's recent Collins-class replacement decision.

North Korea's latest submarine-launched ballistic missile video appears unconvincing.