Final answer:
The development of new technology and tactics, such as the convoy system, code breaking, radar, and sonar, helped reduce the threat of German U-boats to Allied shipping and naval vessels in World War I and World War II.
Step-by-step explanation:
The development of new technology and tactics played a crucial role in reducing the threat posed by German U-boats to Allied shipping and naval vessels during World War I and World War II. Here are some key factors that helped:
- The Allied Powers implemented the convoy system, where cargo ships traveled together in convoys guarded by warships. This strategy made it difficult for U-boats to effectively attack and sink individual ships.
- The British code breakers at Bletchley Park, led by Alan Turing, were able to crack Germany's Enigma code. This breakthrough provided valuable intelligence to the Allies, allowing them to track the movements of German U-boats and respond accordingly.
- The development of radar and sonar technology enabled Allied ships to detect and track German U-boats more effectively. Radar was used in planes to detect U-boats on the surface of the Atlantic, while sonar equipped naval destroyers were able to track U-boats underwater.