Battle of the Atlantic

The Battle of the Atlantic was the longest continuous military campaign of World War II running from 1939 through to the defeat of Germany in 1945. It was at its height from mid-1940 through to the end of 1943. The Battle of the Atlantic pitted U-boats and other warships of the German Navy against Allied convoys. The convoys of merchant ships, coming mainly from North America and the South Atlantic and going to the United Kingdom and the Canadian navies and air forces. These forces were aided by ships and aircraft of the United States from September 13, 1941.[3] The Germans were joined by submarines of the Italian Royal Navy (Regia Marina) after Italy entered the war on June 10, 1940. On occasion Imperial Japanese Navy submarines were dispatched to the Atlantic.

Battle of the Atlantic in Days of Infamy
The Battle of the Atlantic had already begun when the Japanese invaded Hawaii in 1941. During the occupation, news of the U-Boats successes were posted in the Japanese run news papers.

After the first attempt to retake the islands failed, the US Navy began to employ the tactics the Germans used in the Atlantic against the Japanese with devastating results, sinking freighters carrying both food, ammunition, and supplies. Many in the Japanese high command of both armed forces realised the similarities of both their situation and that of the battle ragging in the Atlantic. In a twist of irony, they had to learn from the Allies as how best to deal with the submarine problem.

Battle of the Atlantic in Worldwar
The Battle of the Atlantic was in full swing when the Race invaded in mid 1942 and just as quickly ground to a halt. At first, the convoys enjoyed relative peace as the Race ignored them; not considering boats as a threat, but as the Race began to take notice of the shipping lanes, they began to attack first war ships, then later, the ports.

After the German's lunched their first Elektroboot, Many believed that if the Race had never come, the Germans would've eventually won the Battle of the Atlantic.