Presidency of John Quincy Adams - Wikipedia.
You could check in that.
Answer:
steel.
Explanation
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The had concrete bunkers with MG's that can shoot at 700 bpm with mortars while the U.S. also the Germans where on a incline on a huge moutain/hill so the Germans had a big advantage's but they still lose cause they did not wake up hilter from his sleep if they did they would of won of Omaha beach.