Why was the landing on the beach at Normandy on D day a gamble for the Allies?

remember the people who sacrificed their lives at gettysburg

mark me brainiest

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.