What is a rapid counterattack thrust used in fencing?

Answer 1

A counter attack is a move that happens when one's opponent is on the attack. When one's opponent is in the process of the attack (signified by the forward movement of the arm holding the blade), the counter attacker will attack into his opponent's attack. Essentially, the counter attack is a move that either stems out of a lack on the fencer's part to use another move, or an attempt to hit their opponent before they themselves can be hit. A counter attack can only be called as such if the other fencer has already begun their attack.

Answer 2

Riposte