Why was it important for the Allies to breach Hitler’s Atlantic wall

Probably the most important thing was the ability to coordinate an amphibious attack on the beaches and to bypass the German defenses.

Explanation:

Atlantic Wall was created by the Germans so they prevent the Allies to easily breach their defense system. It was strengthen throughout the war and the Allies had different opinions on how they would attack the enemy. When the operation D-day became operational they realized that they need also to attack Germans from the back, as it was impossible to attack them only by sea.

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what are two things that greatly the american economy after the war? the huge buildup of u.s. military the beginning of the korean conflict the creation of the gi bill the marshall plan for nations