Evading an aggressor with a single-boot evasion will leave one leg on the confrontation line.
It will also reduce follow up post-evasion expedient movement by leaving you in a wide stance and as such provide expanded target mass for your enemy.
Using a single, long-leg evasion against an aggressor armed with a medium to long length bludgeon or edged weapon increases the risk of contact with the static leg.
A military CQC trained combatant with a long edged or bludgeon type weapon may either target the closest leg first or an upper quadrant target with the weapon line of travel being from high to diagonally low exposing the enemy’s leg to secondary targeting.
Either way the enemy’s legs are either a primary or secondary target and any leg left on the confrontation line is exposed to unnecessary risk.
A trained military CQC combatant employing unarmed combat threat neutralisation that identifies a single leg evasion can easily stamp the hyperextended stationary leg destroying the integrity of the knee joint or knee cap, incapacitating the enemy on the ground.
A decentralised, incapacitated enemy is vulnerable to their enemy’s ground threat neutralisation with their escape and evasion capabilities removed and being left with nothing more than high-risk ground defensive options.
Unarmed evasive counter-offensive assault must always be a combination of expedient mobility and strong legs stability.
This is best achieved from a shoulder width stance and under expedient evasive action moving both boots as quickly as possible off the confrontation line to ensure the trailing leg clears the confrontation line as quickly as possible.