159: The Early War at Sea Pt. 9 - Finding U-Boats

The threat that the U-Boats posed was well known after the First World War, so how did the British plan to protect their trade from them? Contact advertising@airwavemedia.com to advertise on History of the Second World War. History of the Second World War is part of the Airwave Media podcast network. Learn more about your ad choices. Visit megaphone.fm/adchoices