If his forces are united, separate them. ss. 1.23, Chapter 1: Laying Plans

We can form a single united body, while the enemy must split... ss. 6.14, Chapter 6: Weak Points and Strong

The host thus forming a single united body, is it impossible... ss. 7.25, Chapter 7: Maneuvering

When the enemy's men were united, they managed to keep them ... ss. 11.16, Chapter 11: The Nine Situations