“North – resist Cao Cao; east – reconcile Sun Quan”

Kong Ming’s advice to Guan Yu, “North – resist Cao Cao; east – reconcile Sun Quan,” condenses the strategic problem of defending Jingzhou into two linked priorities. Given as Kong Ming departs to aid Xuande after Pang Tong’s death, it directs Guan Yu to oppose Cao Cao while avoiding a breach with Sun Quan, making the security of Jingzhou depend on managing both threats at once.

Occasion and Context

The instruction comes after Xuande’s forces suffer a setback and he learns that Pang Tong has died. He asks Kong Ming to come to his aid; Kong Ming responds by placing Guan Yu in charge of protecting Jingzhou. Before leaving, he tests Guan Yu’s thinking about what to do if Cao Cao attacks, and then about the possibility that Cao Cao and Sun Quan attack together. The eight words that follow are the distilled answer to those strategic contingencies.

The Two Directions

The first half, to resist Cao Cao in the north, identifies the immediate military danger from the north. Kong Ming’s wider assessment is that Cao Cao controls the emperor and commands powerful forces, making him an opponent Xuande cannot treat lightly. The second half, to reconcile Sun Quan in the east, makes clear that resistance to Cao Cao cannot be pursued without regard to the neighboring power. Sun Quan is not simply another enemy to be fought: maintaining workable relations with him is essential to avoiding a simultaneous conflict on both fronts.

Strategic Meaning

The advice binds defense and diplomacy together. Guan Yu is not told merely to hold Jingzhou by force; he must also preserve the eastern relationship that helps keep that defense viable. The formulation is therefore a practical order for a specific command, but also a compressed expression of Kong Ming’s broader strategy: confront Cao Cao while seeking accommodation with Sun Quan. Its force lies in the balance between its halves; neglecting either would put Xuande’s position at risk.