During World War II, Japan stunned the world with a top-secret innovation: the I-400-class submarine, the first and only underwater aircraft carrier ever deployed in combat. These massive subs could ...

What To Know . Russian sailors found the Soviet M-49 submarine, which is believed to have sunk on August 16, 1941, having "disappeared without a trace," state-run news agency RIA Novosti reported.

The Russian Borei-class nuclear submarine Yuri Dolgorukiy on July 27, 2014, in Severomorsk, ... The Order of Nakhimov, established by the Soviet Union during World War II, ...

In late 1984, when the first Akula submarine of the Soviet Navy put to sea, it immediately changed the way anti-submarine warfare would be conducted. With the Akula’s arrival the American ...

This underwater monster became the most powerful Soviet submarine and the first to break through 2.5 meter thick ice in the Arctic. The Cold War that began right after the end of World War II ...

Germany in 1939 had begun World War II with just 57 U-boats and had threatened to sever the oceanic ties to Britain; the Soviet order of battle—according to U.S. intelligence—could begin a war ...

A Russian anti-submarine destroyer chased off a U.S. submarine near the Kuril Islands, ... have been controlled by Moscow since they were seized by Soviet troops in the waning days of World War II.

Submarines play a significant role in limiting enemy naval operations. During World War II, U.S. Navy submarines made up only two percent of the ocean-going fleet but were responsible for sinking ...

One of Russia's nuclear-powered submarines, named Belgorod, has reportedly vanished from its Arctic harbor, and Western countries fear it could be gearing up to test its advanced weapons systems.

In Iceland, a hunt for Russian submarines and deeper U.S. relations. The island nation, a NATO member, is wary of Moscow’s renewed military presence in the waters of the North Atlantic.

The Russian nuclear submarine Dmitry Donskoy moored near Kronstadt, a seaport town 30 km (19 miles) west of St. Petersburg, Russia on Saturday, July 29, 2017.

A submarine that sunk during World War II has been discovered off the Pacific Coast, Russia's Pacific Fleet said Monday. The Malyutka-class submarine went missing during the war in the Peter the ...