Quotation from: The Art of War

Written by: Sunzi (6th cent. B.C.)

On facile ground, I would see that there is close connection
between all parts of my army.

[As Tu Mu says, the object is to guard against two possible
contingencies: "(1) the desertion of our own troops; (2) a
sudden attack on the part of the enemy." Cf. VII. ss. 17. Mei
Yao-ch`en says: "On the march, the regiments should be in close
touch; in an encampment, there should be continuity between the
fortifications."]