What is a fundamental difference between a 'block' and a 'parry' in self-defense, and how does this difference affect subsequent counter-attack options?

The fundamental difference between a 'block' and a 'parry' in self-defense lies in their 'level of force absorption' and 'degree of deflection'. A block is designed to absorb a significant portion of the force from an incoming attack, often involving a braced limb or the body's core. A parry, on the other hand, aims to deflect or redirect the attack with minimal force absorption, typically using a smaller surface area like the forearm or hand. This difference significantly affects subsequent counter-attack options because a block, while providing more protection, can leave you momentarily 'off-balance' or 'encumbered', delaying your counter-attack. A parry, although offering less direct protection, allows for a much 'faster transition' into a counter-attack since your limb is already in motion and your balance is less compromised. Effective parrying can create an immediate opening for a strike or evasion, making it ideal for rapid counter-offensive maneuvers.