
Second Battle of the Atlantic
The Second Battle of the Atlantic (1939–1945) was a crucial naval struggle during World War II where Allied forces fought to keep vital supply routes open across the Atlantic Ocean. German submarines (U-boats) targeted Allied ships transporting troops, equipment, and supplies from North America to Europe. The Allies developed new strategies and technologies, like sonar and convoy systems, to detect and defend against U-boats. The battle's outcome was vital for the success of the Allied war effort, ensuring the continuous flow of resources needed to defeat the Axis powers in Europe.