Self Defense Is Mandatory

Is self-defense okay in the Torah? Not only is self-defense okay, but it's actually a obligation. Where the Torah says, "A ba l o g k m l g o." Somebody is coming to kill you, you have to kill them first. Uh so, it's not only that you are allowed to defend yourself, you're obligated to defend yourself. It's a mitzvah for you to defend yourself.