If you can trap an opponents and arm between your knees, you will immediately be in to the upper with . The of Jiu jitsu is always to control greater strength and aggression with lesser strength and aggression. There are different ways to express this ideal – but one of the very best is to match the strength of your legs against an opponents arms. This is a battle you can consistently win even against much stronger opponents. A simple and extremely effective way to do this is to clamp your opponents head and one arm between your knees while taking an angle. This opens the door to , triangles, kimuras, omo plata – even leg if you know what you're doing. It immediately turns a passive or neutral bottom position into a highly advantageous one – look to get there as often as you can!