" Das Reich’s journey to Normandy should have taken no more than seventy-two hours. Instead, it took seventeen days for the main body to arrive, and it was even longer before the last of the vehicles reached the battlefield. By the time General Lammerding’s men and tanks were ready for action, it was too late. The Allied beachhead was secure. "

― Giles Milton , Churchill's Ministry of Ungentlemanly Warfare: The Mavericks Who Plotted Hitler's Defeat