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.

Spotter planes can no longer directly see enemy submarines. Today, their mission is overwhelmingly acoustic—listening to signals from submarines and narrowing down their likely position before taking ...

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 ...