The Mediterranean crowded submarines together with aircraft, escorts, minefields, and imperfect recognition procedures. Large wartime mobilizations made attacks on friendly boats a danger for both sides. In the Indian Ocean, German and Japanese submarine deployments forced Axis commanders to coordinate closely or risk hitting each other; refusing to attack unidentified boats, however, gave Allied submarines more freedom. Anti-submarine effectiveness depended on identification policy and coalition command arrangements alongside sensors and weapons.
Notable Point · 28:43-30:04
Recognition rules and submarine friendly fire
Crowded seas and coalition deployments forced commanders to balance aggressive anti-submarine action against the danger of attacking friendly boats.