Imagine it’s more than 200 years ago and you live on a small farm in New York State. Your father had to leave the farm to fight for freedom in the American Revolution. Your father was called a minuteman. He had to be ready to fight at a minute’s notice. He used his own gun to fight the British.
Now that the war is over, America is a free country. The Founders of the U.S. government want America to stay free. They would like to keep using minutemen to make America safe.