How did the franco-prussian war of 1870—1871 contribute to german unification?

german victory in the war increased nationalism and patriotism in germany.
french victory in the war united the germans against a common enemy.
the war resulted in wilhelm i becoming king of prussia.
the war showed that only military force could unite germany.

Which points did chief justice roger b. taney use to justify the supreme court’s ruling in the dred scott case? the property clause of the constitution, the due process clause of the fifth amendment, and the fact that african americans were not citizens. the practice of judicial review established in marbury v. madison, the property clause of the constitution, and the due process clause of the fifth amendment. the necessary and proper clause of the constitution, the due process clause of the fifth amendment, and the fact that african americans were not citizens. the commerce clause of the constitution, the elastic clause of the sixth amendment, and the practice of judicial review established in gibbons v. ogden.