Depends on what you mean slavery -(freedom) was the act of African Americans fighting for their will rights and "freedom"
And freedom as a nation is the ability to do as you please (to a limit) and not have to worry about anything like slavery, not soon anyways.
As long as he or she is registered, he or she can vote.
The correct answer is government. Here in the United States, to fill the purpose of government we have things such as the Navy, Air Force and other military branches.
I’m sorry I can’t see your question what are you asking ?