Destroyers played a large part in anti-submarine warfare, particularly in protecting convoys.
2nd asnwer:
Yes, and convoys themselves were put together as a way to overcome U-boat depredation. Later in the War, aircraft were used some to spot U-Boats from the air.
Warships began to be outfitted with submarine detection equipment, primarily SONAR.
The US developed Depth Charges, small bombs that were tossed overboard where a submarine was lurking.
The Germans then threatened to use only Uboats for war and blew up a few ships.
Convoys.
The use of the convoy system protecting merchant ships as they crossed the Atlantic , airplanes for reconnaissance , radar , depth charges .
The use of the convoy system protecting merchant ships as they crossed the Atlantic , airplanes for reconnaissance , radar , depth charges .
threat levels
The company received a threat of legal action from a competitor.
Staff uses the threat facors to determine the seriousness of the threat to determine what prodigal to take in the situation.
Yes , airplanes were used to help detect U-Boats such as the PBY Catalina which was a flying-boat used to provide the eyes of a convoy and air-sea rescue .
It will charge a threat, it will use its body weight to crush any threat that gets too close.
It was horrendous how a dire threat like that could send me over the edge.
Different countries have different ways of assigning threat levels. They also may use different terms
no