What are the Nine Battlegrounds-Sun Zi

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What are the Nine Battlegrounds by Sun Zi

English: Sun Zi said: In the deployment of troops, there is dispersive ground, frontier ground and key ground. There are also communicative ground, focal ground, serious ground, treacherous ground, constricted ground and death ground.

Modern: 孙子曰：用兵的方法，有散地，有轻地，有争地，有交地，有衡地，有重地，有圮地，有围地，有死地。有

Original: 孙子曰：用兵之法，有散地，有轻地，有争地，有交地，有衡地，有重地，有圮地，有围地，有死地。

Business Application:

From: Sun Zi Art of War Chapter 11