10. 故小敵之堅，大敵之擒也。

【A】小部隊如果只知堅守陣地跟敵人硬拼，一旦遇到強敵就會變成俘虜。

If a weak force insists on resisting its enemy, it will be captured when facing a much stronger troop.

Another translation may be considered:

【B】如果小部隊能堅持跟敵人戰鬥到底，一旦援兵增大必能將敵軍擒住。

If the weak force insists on combating against its enemy, once its reinforcement gets in the enemy will be captured.

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