German coastal defenses varied sharply in equipment and strength. Key ports and the Pas-de-Calais received the strongest positions, while other stretches relied on machine-gun bunkers, older captured artillery, or simple wooden obstacles because Germany's best equipment was needed elsewhere. That concentration protected the most valuable and apparently likely targets but invited the Allies to land where the system was weaker. Mulberry harbors then reduced the need to seize a defended port immediately, turning Allied engineering and logistics into a way around the wall's strongest points.
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The Atlantic Wall concentrated strength at ports and the Pas-de-Calais
German defenses ranged from wooden obstacles and captured guns to strong port positions, leaving an attacker room to choose a less fortified coast and bring its own harbor.