Victory in Battle of the Atlantic?

Answer 1

During World War II, victory in the Battle of the Atlantic was essentially achieved in 1943 after years of back-and-forth conflict. In the middle of 1943, Allied technological advances and numerically superior air and naval forces finally gained the upper hand over the German "U-Boats". While the submarines continued to prowl the Atlantic until the end of the war, they did so at great loss and without inflicting serious damage upon Allied ships.