Add Yahoo as a preferred source to see more of our stories on Google. L. David Marquet is a former United States Navy Captain and author who served in the submarine force for nearly three decades.

Submarines are hard to find. They exploit ocean depth, acoustic complexity, and thermal layers to maintain low observability and high survivability. Diesel-electric submarines are especially quiet at ...

In this video, we take a look at how submarines work. We dive into the stability considerations and touch upon how they are powered and how they generate oxygen. 'Robbing them': Treasury slams states ...