"I thought according to the treaty of Versailles, all these U-boats were destroyed. Guess they missed this one, huh?"
Indiana Jones[src]

The U-357 was a German U-boat captained by Wagner. In 1933, it was personally sent by Adolf Hitler to help Franz Kroeger recover the Crystal Skull of Cozan from Marseilles. It was unable to return with the skull however, and sank off the coast of Denmark, killing all aboard. Indiana Jones later found the wreckage, and retrieved the crystal skull.

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