All combat situations usually start standing, but most end up going to the ground. While striking is a highly important skill to know, it is also wise to learn how to defend yourself on the ground as well. One of the most basic jiu jitsu ground techniques is the arm bar from guard. This move has been used in both competition and street confrontations to render the opponent helpless and possibly injured.
This video will show you the jiu jitsu technique to properly execute an arm bar from guard. Enjoy!