I think it was called a citizen's army because when citizens came together to form a 'army' the normal army, and other countries, referred to them as a 'citizen's army'
Hope this helps! :)
It shirted after the world war 2 but if I’m wrong try using google
<span>The Voting Rights Act of 1965 was the major piece of legislation that ended explicit African-American disenfranchisement in the South. This act held that any form of regulation that discriminated on the basis of race in the voting process was unconstitutional: this was a way of strengthening and enforcing the rights proscribed in the 14th and 15th Amendments.</span>