The most foolish mistake we could possibly make would be to allow the subject races to possess arms. History shows that all conquerors who have allowed their subject races to carry arms have prepared their own downfall by so doing. - Adolph Hitler
Our Second Amendment in one sentence reads:
A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.
Simple enough to understand…"the right of the people to keep and bear arms, shall not be infringed". It is the only amendment that states a purpose, "being necessary to the security of a free state". James Madison