In this how-to video, you will learn how to defend yourself from an attack from behind. When someone gets you from behind, put your arm around him and grab his arm. Make sure to shout when you do this. Take your other arm and punch him in the face twice by punching him once and then punching him when the arm is returning back. You have many types of shots to take, such as at the throat or groin. Once this is done, you can push the attacker back. This video offers great advice for responding to attacks from behind.