Peacetime anti-submarine encounters impose different constraints from wartime attacks. A surface ship may detect an approaching submarine yet avoid showing exactly what its sensors can see. Sinking the contact would be an act of war, while visibly reacting can disclose valuable capability information. The example adds intelligence and signaling to the technological contest between submarine stealth and detection.
Notable Point · 25:43-26:34
Peacetime submarine detection creates a secrecy dilemma
Detecting a submarine in peacetime does not mean a navy should reveal its sensors or escalate by attacking it.