This long chapter goes into terrain with greater depth, setting out nine forms of battleground and the actions appropriate to each. For example:

If I obtain it, it is advantageous.
If he obtains it, it is also advantageous.
This is "contested."

It also addresses conditions that arise when one is deep within enemy territory. Thus it argues for the efficacy of danger:

Throw them where they cannot leave.
Facing death they will not be routed.
Officers and men facing death,
How could one not obtain their utmost strength?