Bao Tao: Dividing the Hazards

King Wu inquired of Tai Gong:
"When leading troops deep into enemy territory, we encounter adversaries in a narrow, treacherous pass. Our forces occupy terrain with mountains to the left and rivers to the right, while the enemy holds mountains to their right and rivers to their left. Both sides cling to strategic positions, locked in stalemate. In such a scenario, each side believes it can defend firmly and attack victoriously. How should we proceed?"

Tai Gong replied:
"When our army seizes the left side of the mountain, swiftly secure the right. When we occupy the right, guard the left. At critical rivers without boats, use floating bridges like Tianhuang to cross. The vanguard that crosses must quickly clear paths and seize advantageous ground for the main force to follow. Deploy Martial Impact Chariots to shield our front and rear, array powerful crossbows to stabilize formations. Block mountain passes and valley entrances with these chariots, hoist banners high, and create a 'chariot fortress.'

The method for fighting in perilous terrain is this: Position Martial Impact Chariots at the forefront, protect them with giant shields, and secure the flanks with elite crossbowmen. Divide troops into 3,000-man units, form offensive arrays, and deploy them on tactically favorable ground. In battle, the left army attacks the left flank, the right the right flank, and the center strikes head-on—all advancing in unison. Rotate engaged troops back to camp to rest, while fresh units cycle into combat. Fight in shifts, rest in turns, until victory is assured."

King Wu exclaimed:
"Excellent!"