National Security Journal on MSN
In 2005, a Swedish Gotland-class submarine slipped past a US Navy carrier strike group — undetected for the entire exercise
In 2005, a Swedish Saab-built Gotland-class diesel-electric submarine slipped past an entire U.S. Navy aircraft carrier ...
Add Yahoo as a preferred source to see more of our stories on Google. The Cartagena shipyard of state-owned shipbuilding firm Navantia has begun the installation of the first air-independent ...
National Security Journal on MSN
Japan’s new Taigei-class ‘Big Whale’ submarine has a message for the US Navy
Japan’s Taigei-class submarine—the “Big Whale”—is the first submarine class designed entirely around lithium-ion batteries, ...
The ocean depth is the last domain where America still has a clear military advantage over China. As battlefields fill with ...
The Indian Navy will retrofit INS Khanderi with an Air Independent Propulsion (AIP) system, allowing the submarine to remain ...
6dOpinion
Why the US must deliver full US nuclear propulsion and fuel cycle technology to South Korea now
In December 2025, North Korean leader Kim Jong-un toured a shipyard and inspected the completed hull of a supposed 8,700-ton ...
While diesel engines don't need spark plugs, they do need air ventilation for proper combustion. This is a problem for vessels traveling underwater, such as submarines. Yet diesel submarines exist and ...
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