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Why was the lock at La Barquette an important objective for American airborne troops?
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Utah Beach
Soldiers of the 4th Infantry Division wade ashore at Victor sector, Utah Beach, on D-Day, June 6, 1944. Amphibious tanks are lined up at the water's edge.
The lock at La Barquette was a critical objective for American airborne troops because it controlled the flooding of the lowlands and marshes in the Cotentin Peninsula, which served as a primary natural defense for German forces.1
By manipulating the lock—opening it at high tide to flood the area and closing it at low tide to trap the water—the Germans maintained a vast, impassable marshland across the Douve and Merderet rivers. Seizing the lock was essential to preventing the Germans from using these water levels to hinder Allied movement and to secure the area for the advancing seaborne invasion force.1