6 references to "two":
(1) Which of the two sovereigns is imbued with the Moral law... ss. 1.13, Chapter 1: Laying Plans
(2) Which of the two generals has most ability? ss. 1.13, Chapter 1: Laying Plans
if twice as numerous, to divide our army into two. ss. 3.8, Chapter 3: Attack by Stratagem
In battle, there are not more than two methods of attack: th... ss. 5.10, Chapter 5: Energy
If you march thirty LI with the same object, two-thirds of y... ss. 7.10, Chapter 7: Maneuvering
If you are situated at a great distance from the enemy, and ... ss. 10.12, Chapter 10: Terrain