6.19

Chapter: Weak Points and Strong 6.19
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Translation:

Knowing the place and the time of the coming battle, we may concentrate from the greatest distances in order to fight.

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Commentary

When you know when and where a battle will be, then you have time to bring more troops to the battlefield. The longer you have, the further the distance you can move them and hence, even if your troops are dispersed, you can assemble a powerful host.

Timing can be critical in battles, including late but timely arrival of reinforcements that can turn fortunes around.