By Bryan Clark, Seth Cropsey & Timothy A. Walton, Hudson Institute
Submarines have posed a challenge to naval forces for more than a century, enabling weaker maritime powers to launch surprise attacks ashore or cut an opponent off from the sea. But submarine threats, and the difficulty of countering them, increased substantially for the United States and its allies during the past decade.
The full report can be downloaded from a link from the Hudson Institute: https://www.hudson.org/research/16347-sustaining-the-undersea-advantage-transforming-anti-submarine-warfare-using-autonomous-systems