傳統上，許多軍事研究者將《孫子兵法》軍爭篇中的「迂直之計」解釋為「將彎路視為直路的策略」，或是「示以迂遠」的欺敵之術，部分人士並且將其與英國軍事思想家李德哈特所主張的間接路線相類比。但是衡諸上下文，本研究以為「迂直之計」應該是指「破壞或削弱敵軍優勢的策略」。至於李德哈特所主張的間接路線，由於其重點是要讓敵軍措手不及，故應可與《孫子兵法》始計篇中的「攻其無備，出其不意」以及兵勢篇中的「凡戰者，以正合，以奇勝」等觀念遙相呼應。

Traditionally, military scientists perceive“the strategy of yu zhi＂in Sun Tzu's the Art of War as“to treat a curve road as a straight one＂or“to replace a straight way by an indirect one＂. As such, this strategy is also understood by some as a double to“indirectness＂proposed by the English military thinker B. H. Liddell Hart. However, by a close re-examination, the author argues that“the strategy of yu zhi＂should be a tactic to sabotage or weaken enemy's advantage. As to“indirectness＂recommended by Liddell Hart, since its success depends upon the unreadiness of the enemy, such tactics could be echoed as Sun Tzus as“to attack when enemy is unprepared; sally out as they do not expect you＂and“to use the normal force to engage, while use the extraordinary to win＂