Battle for the North Atlantic

The Battle of the North Atlantic was the longest continuous military campaign of World War II, running from 1939 until the defeat of Nazi Germany in 1945, though it reached its peak from mid-1940 through the end of 1943. The Battle of the North Atlantic pitted German U-boats and other warships of the German navy against Allied merchant shipping. Initially, convoys of merchant ships were protected for the most part by the British and Canadian navies and air forces. Starting in the early fall of 1