The Battle of Sishui Pass is an early test of the Coalition against Dong Zhuo and a defining introduction to Guan Yu’s battlefield reputation. A failure of trust and supply leaves Sun Jian’s army vulnerable to Hua Xiong; Guan Yu’s swift victory then reverses the coalition’s despair, even as the episode exposes discord among its leaders.

Setting and opposing forces

Dong Zhuo’s adopted son, Lü Bu, initially assures his father that the coalition poses no serious danger and offers to deal with it. Hua Xiong dismisses the prospect of fighting as a minor task, and Dong Zhuo, impressed by his confidence, sends him out that night with fifty thousand troops. The pass becomes the point where the coalition’s advance meets Dong Zhuo’s military resistance.

The first clash is between Sun Jian’s army and Hua Xiong’s force. Sun Jian is driven back and asks Yuan Shu, who is responsible for supplies, for reinforcements in provisions. The request places the campaign’s fragile coordination in focus: the coalition has assembled against a common opponent, but its members do not necessarily trust one another’s intentions.

The supply failure and Sun Jian’s retreat

An adviser warns Yuan Shu that Sun Jian might defeat Dong Zhuo and take the capital, leaving the coalition with a new threat in place of the old one. Yuan Shu accepts this suspicion and sends no supplies. The shortage provokes unrest in Sun Jian’s camp, and news of the disorder reaches Dong Zhuo. Rather than treating the coalition as a united force, Yuan Shu’s decision undermines one of its armies at a critical moment.

Hua Xiong attacks at midnight. In the confusion, Sun Jian’s troops are routed, and nearly all his commanders abandon him. His conspicuous red cloak makes him easy to identify, so Zu Mao takes it and wears it as a decoy while Sun Jian escapes. Zu Mao hangs the cloak on a tree to mislead the pursuing soldiers, then tries to exploit the diversion; Hua Xiong kills him with a single blow. Sun Jian survives, but his army has suffered a severe defeat, and its remaining soldiers return to the coalition’s main camp as the slaughter continues until daybreak.

There, Yuan Shao convenes a council of war and acknowledges that the disastrous campaign has badly weakened morale. The silence in response to his question about what to do next gives the defeat a political consequence as well as a military one: the coalition’s commanders have no ready answer, and their unity has not prevented its members from obstructing one another.

Guan Yu kills Hua Xiong

Hua Xiong advances to the coalition camp and challenges its warriors. Two prominent fighters go out against him and are killed, deepening the council’s alarm. Guan Yu then volunteers. Yuan Shao objects when he is told that Guan Yu is only an archer, treating the offer as an affront to the commanders. Cao Cao argues that there is little to lose by allowing him to try.

Cao Cao orders warm rice wine for Guan Yu before the fight. Guan Yu says he will return shortly and rides out without drinking it. The council hears the battle drums and shouting, but the account does not describe the combat itself in detail. Guan Yu returns before the wine has cooled and places Hua Xiong’s severed head before the astonished leaders. The warm wine becomes the episode’s memorable measure of the victory: the challenge is settled so quickly that the drink remains untouched.

The moment also changes how Guan Yu is regarded. He had been dismissed as an archer and treated as an unsuitable challenger; his return with Hua Xiong’s head makes that judgment untenable. Cao Cao’s willingness to support the attempt contrasts with Yuan Shao’s status-conscious objection, while the council’s astonishment registers the gap between Guan Yu’s apparent standing and demonstrated ability.

Consequences and narrative significance

The coalition celebrates Guan Yu’s victory, but Yuan Shu broods. That contrast preserves the episode’s concern with rivalry inside the alliance: a shared enemy can produce a public triumph without dissolving private resentment. Sun Jian’s defeat has already shown how suspicion over the prospect of a rival leader can obstruct cooperation; Guan Yu’s success restores the camp’s confidence, but does not erase its internal divisions.

The battle thus links strategic vulnerability with individual distinction. Sun Jian’s position collapses after a refusal of supplies, and his escape depends on Zu Mao’s diversion; the coalition’s immediate answer to its crisis comes instead from Guan Yu’s single combat. The episode establishes a pattern in which fractured political coordination creates danger, while a warrior’s conspicuous action can abruptly alter the balance of morale and reputation.

It also places the coalition within the wider struggle over the failing Han order. The period’s competing leaders are carving kingdoms from a weakening empire, and the campaign against Dong Zhuo is presented as a common cause that nevertheless contains conflicting ambitions. At Sishui Pass, those ambitions are visible not in a formal break among the allies but in the concrete decision to deny supplies. The resulting defeat and Guan Yu’s rapid victory give the campaign both its political tension and its celebrated martial turning point.