Send Jerry to a watery grave!

        The Canadians played a large role in not only shipping supplies, but also helping to fight the U-boats. However, by 1941, Germans were sinking ships faster than the allies could build them. Supply ships needed to travel in convoys (merchant ships surrounded by destroyers for protection). This system worked very well for the most part. As crew training increased and more ships were added, it became very effective. Sonar was also developed which helped detect U-boat from great distances. This system, aided with Canadian long-range bombers and depth charges crippled The German "wolfpacks".