If a picture is worth a thousand words, than more than enough has been said with this picture.
That said, the second image is for anyone who happens to be on the "other side of the fence" when it comes to this issue. From either side of the fireball, the message is as clear as day.
For those who cannot decode that, here is a third image. Instead of hurling the world into a conflict, causing innocent civilians to suffer horrendous acts of violence, do yourself and the entire world a favour: FOAD.