For generations, a great comparative advantage the United States has enjoyed at sea is the superiority of its submarine force.

It has become simply an assumption in our war planning to the point it is treated as almost a natural part of the environment.Of course, nothing stands still in war. Time and technology usually finds a way to blunt any advantage, leverage any vulnerability.

As the challenge at sea grows, what can the US do to maintain the comparative advantage under the sea?

Returning to Midrats this Sunday is Bryan Clark, Senior Fellow at the Hudson Institute.The starting point for our conversation will be the recent report he co-authored with Timothy Walton this month at Hudson’s Center for Defense Concepts and Technology, Fighting into the Bastions: Getting Noisier to Sustain the US Undersea Advantage.