What is the most effective way to defend against a downward stabbing motion from an edged weapon?

The most effective way to defend against a downward stabbing motion from an edged weapon is to combine evasive movement with a strong parry or block. Initially, moving off the line of attack is paramount; this involves stepping laterally or diagonally away from the incoming blade to avoid direct contact with vital areas. Simultaneously, a strong parry using a forearm, or any available object for protection, should be executed to deflect or redirect the weapon's trajectory. The parry should aim to intercept the attacker's wrist or forearm, rather than the blade itself, to minimize the risk of injury. Following the parry, immediately close the distance to disrupt the attacker's balance and control, creating an opportunity to disarm or counter-attack. For example, stepping to the side while using a forearm to deflect the knife-wielding arm allows you to avoid the stab and move into a position where you can control the attacker's arm and potentially disarm them. Simply blocking without moving offline leaves you vulnerable to follow-up attacks.