The Armbar from The Back is an effective technique in Brazilain Jiu Jitsu. This technique is usually implemented to counter a Rear Nake Choke defense. When carrying out this technique one must ensure that you remain in control of the other fighters back. Failure to do this will inevitably result in the fighter turning and facing you. As such the technique will not be able to be used. In addition regular practice ensures performance a correct implementation.