Nothing significant happened last night.
If anything, the Anti-submarine Guard Ship detected several possible underwater targets that could be submarines, but they were all later confirmed to be false alarms.
The Imperial Navy has painstakingly built a tight anti-submarine net in the East Continent Heart Sea over the decades.
About 20 years ago, before the Boi War, the Ter Republic had not yet declared permanent neutrality, nor had it been dismembered by the national independence movement, and it still maintained good relations with the Empire. The military bases on Crete Island were controlled by the Imperial Army.
After the outbreak of the first national independence movement, the Imperial Navy seized the last opportunity to lay a submarine anti-submarine sonar base array between Crete Island and the Xuan Continent, connecting it with undersea cables to Arisa Port, thus establishing an anti-submarine barrier on the west side of the East Continent Heart Sea.
