Battle of the Atlantic (sep 3, 1939 – may 8, 1945)
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September 3, 1939 – May 8, 1945
The Battle of the Atlantic began right as Britain declared war against Germany. It was the longest battle of World War II. The war lasted 5 years. It started in September of 1939 and ended with Germany's surrender to the Allies in May 1945.
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