To formally withdraw from an alliance or union
Secede
A person who wanted to end slavery
Abolitionist
A person who dies or suffers for a cause
Martyr
Withdrawal and to leave the union
Secession
A person who runs away from legal authority
Fugitive
A soldier who is killed, wounded, or captured
Casualty
To set free
Emancipate
Surrounding and blockading a town or outpost
Siege
A state between the North and South that was divided over whether to remain in the union or join the confederacy
Border state
To join
Enlist
Rule or controls
Sovereignty
A ship covered with iron armor
Ironclad
A legal process that prohibits the government from jailing anyone without lawful grounds.
Habeas corpus
A war between citizens of the same country
Civil war
The selection system for required military service
Draft