The following is the Feb. 11, 2025, Congressional Research Service report, Navy Virginia-Class Submarine Program and AUKUS ...

Similarly, the midget submarine, one less than 150 tons, can work very well in certain areas. Iran has several Ghadir-class midget submarines derived from earlier North Korean models. In the ...

Around 75 of the vessels are so-called “midget” submarines that displace no more ... are ageing Chinese copies of Soviet-designed Romeo-class diesel attack boats from the 1950s.

The site on uninhabited Kushima island in the Sea of Japan was apparently intended to serve as a base for Koryu-class midget submarines developed for special attacks to defend mainland Japan.

A detailed model has provided what’s likely our best idea of how the U.K. Royal Navy’s new Dreadnought class nuclear ...