War on the Rocks – The war remains one of the very few real-world examples of post-World War II submarine combat and is rife with lessons for contemporary naval planners. Most notably, unlike the classic convoy battles of the 1940s, what made the difference in this conflict was not the marathon endurance of the submarine crews, or the number of torpedoes they carried on board, but the peculiar physics of shallow water. In messy littorals — full of wrecks, kelp forests, and irregular seabeds that raise the ambient noise level — the side that can operate close to the bottom, exploit these natural disturbances, and survive the inevitable anti-submarine hunt after firing holds the decisive advantage.

The Guardian – As navies seek to counter submarines and protect cables, startups and big defence companies fight to lead market

The Next Web – Helsing, Europe’s best-funded defence tech startup, has unveiled its latest product — an autonomous mini-submarine for underwater reconnaissance. 

(Thanks to Alain)

Navy Lookout – In this guest article, Kamil Sadowski considers the challenges of protecting the maritime infrastructure which underpins much of Europe’s economic activity and is increasingly seen as a major vulnerability for many NATO nations.

European Security and Defense – The growing and increasingly-quiet submarine fleets of potential adversaries present Western navies with a resource-intensive challenge using traditional ASW approaches. This article examines a number of more cost-effective and scalable alternative methods that may allow navies to do more with less.