The Battle of the Atlantic

The Battle of the Atlantic was the longest continuous military campaign of <a href="/article/world-war-ii">World War II</a>, lasting from 1939 to 1945. It was a struggle between Allied convoys, protected by naval and air forces, and German U-boats and surface raiders, aiming to cut off vital supplies to Great Britain. The Allies ultimately won this crucial "tonnage war," securing the sea lanes necessary for victory.