They didn't.
The South had declared that they were not US citizens.
Yes
The north and the south fought against each other in the civil war.
In the US Civil War, the north and the south were fighting against each other. The North being the Union, and the South being the Confederacy.
The US entered into the war as a result of the sinking of the Lusitania with American citizens on board. They had tried a policy of isolationism, ignoring what was going on. Many Americans went into the service of other countries to fight the Germans.
they helped for escaping slavery and coming back and help other people
In the American civil war, yes.
Yes
Civil War
It is called a civil war.
I can't cite a reference for you, but the answer is Yes.
it was not fun all u did was train and fight against each other
The north and the south fought against each other
America was split in the Civil War: Southern states for slavery, Northern states against it. Once the South seceded from the Union, the North had no choice but to fight and win the war against slavery.
ANSWER The followers of Oliver Cromwell and the Army they formed to fight against King Charles I.
No, states cannot discriminate against citizens of other states according to the Privileges and Immunities Clause in the U.S. Constitution.
Rome and Egypt were not direct adversaries. Egypt was absorbed into the Roman Empire after it helped Marc Antouny in the civil war against Octavian.
This is known as a Civil War.