I'm Italian and I'm playing the Italian version of the game, so sorry, I don't know the name of the combat maneuver. I will try to explain:
From the 5th block (I think), you can break the enemy's defense and your foes can do the same. When I was in a large fight, I used to wait for the opponents to attack in order to counterattack. However, now that this move it available, every time they break my defense with that move. How can I avoid my opponents' defense breaks?