Keep your plans hidden so the enemy cannot prepare a counter-strategy. 7. Maneuvering ( The Art of Deception )
A general must understand the physical environment to leverage it effectively. The Complete Art of War
1) Break the enemy's alliances, 2) Attack their army, 3) Attack their cities (worst option). Keep your plans hidden so the enemy cannot
Do not march on certain roads, do not attack certain armies, and do not besiege certain walled cities if the cost outweighs the gain. 2) Attack their army
Neither side will gain by making the first move.