In a legendary 2005 wargame, the small Swedish diesel-electric submarine HSwMS Gotland repeatedly slipped through the U.S. Navy’s most advanced defenses and simulated the sinking of the $6 billion ...

What You Need to Know: Sweden’s Gotland-class submarines have proven indispensable in safeguarding Baltic waters, particularly against Russian incursions.

The Gotland-class of submarines are the pride of the Swedish Navy. They’re really quiet—and are getting even quieter.

Sweden's navy has three advanced Gotland-class diesel-electric submarines and a fourth older one due to be retired when it gets two new models expected starting in 2027.

Such was the case in 2005 when one of Sweden's Gotland-class submarines "sank" the Nimitz-class carrier USS Ronald Reagan (CVN-76) during an exercise in the Pacific Ocean.

Sweden's navy has three advanced Gotland-class diesel-electric submarines and a fourth older one due to be retired when it gets two new models expected starting in 2027.