Queen Dowager Xuan's Argument on Assisting Han Case

During the Warring States period, the State of Han was besieged by Chu at Yongshi and repeatedly sought military aid from Qin. Queen Dowager Xuan argued against intervention, famously using an intimate analogy to illustrate that assisting Han would drain Qin’s resources without yielding tangible benefits. She contended that any support must prove advantageous. However, after Han envoys warned that Han’s collapse would allow Chu to dominate and directly threaten Qin, minister Gan Mao persuaded King Zhaoxiang of the grave strategic risk. The court deliberated on immediate cost versus long-term security, transforming the plea into a critical state policy debate on whether to honor an alliance when no immediate profit is evident.

King Zhaoxiang of Qin ultimately decided to send the Qin army to rescue Han, overriding Queen Dowager Xuan's objection, and the siege of Yongshi was lifted.

Whether Qin should dispatch troops to relieve Han, weighing the immediate financial and military costs against the long-term strategic necessity of preserving a buffer state and maintaining credibility with allies.

The decision reinforced the principle that long-term strategic interests can outweigh short-term isolationist views in statecraft. It preserved Han as a buffer against Chu, bolstered Qin’s reputation for honoring alliances, and set a precedent for interventionist policy that later contributed to Qin’s unification strategy.