Why can a submarine with no reactor, limited speed, and a modest weapons load still create outsized problems for fleets built ...

Diesel engines cannot work without oxygen, so how do diesel submarines operate when they're underwater? Their propulsion ...

Historic submarines are surprisingly similar to those deployed by today's Navy and can provide an unprecedented look into ...

The US Navy could certainly use help beneath the waves. Speaking at a US House subcommittee hearing in 2019, the then head of US Indo-Pacific Command, Adm. Philip Davidson, gave a stark assessment of ...