How do I use the knee shield in half guard?

The knee shield transforms half guard from a defensive survival position into an offensive platform. Your shin acts as a frame that prevents your opponent from applying pressure and creates the distance needed to set up techniques. The bottom leg controls their far leg while the top knee creates a wedge against their chest. From here, you can pummel for the underhook, which leads to the standard half guard sweep game. Alternatively, the knee shield creates angles for guillotine and loop choke attempts when the opponent tries to close the distance. To transition out of knee shield, you can drop your shield to enter deep half, push them away to set up open guard, or move to full closed guard if you can get your leg over their back. The knee shield is particularly effective against bigger opponents because it uses your bones to create a rigid frame that is difficult to collapse regardless of the size differential.