The Nine Battlegrounds (Chinese: 九地) describes the nine common situations (or stages) in a campaign, from scattering to deadly, and the specific focus that a commander will need in order to successfully navigate them.
Attacking with Fire (Chinese: 火攻) explains the general use of weapons and the specific use of the environment as a weapon. This section examines the five targets for attack, the five types of environmental attack and the appropriate responses to such attacks.
Intelligence and Espionage (Chinese: 用間，用间) focuses on the importance of developing good information sources, and specifies the five types of intelligence sources and how to best manage each of them.