What major U. S. War helped change the laws that stated that enslaved Africans were not U. S. Citizens?

The correct answer to this open question is the following.

Although there are no options attached we can answer the following.

The major U.S. War that helped change the laws that stated that enslaved Africans were not U.S. Citizens was the American Civil War (1861-1865).

Before the Civil War, slavery was the normal thing in the large plantations of the southern states. Indeed, the economy of the South totally depended on slaves to produce the kinds of crops that had to be exported to Europe.

During the war,  U.S. War, US President Abraham Lincoln issued the Emancipation Proclamation in January 1863, stating that al slaves in the south had to be free.

After the war, and during the Reconstruction period, white people established a series of laws called the Jim Crow laws that limited black people's rights.

It was the 14th Amendment to the United States Constitution granted citizenship to all the people born in the US or that were naturalized in the US, as was teh as of most black people.

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.

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