The Four-Line Poem That Stopped an Empire
In 612, during the war between Goguryeo and the Sui dynasty, Eulji Mundeok used a strategy of delay and controlled retreat to draw the Sui army close to Pyeongyang. Goguryeo forces fought seven times and lost seven times, using these apparent defeats to lure the Sui army deeper into Goguryeo territory. The Sui soldiers had left Liaodong with 100 days of food, but as the march continued, many soldiers abandoned their heavy provisions. Goguryeo also used scorched-earth tactics, removing food from the fields so that the Sui army could not resupply locally.
Quick Summary
Eulji Mundeok sent a four-line classical Chinese poem to the Sui general Yu Zhongwen.
On the surface, the poem praises Yu’s strategy and military merit. In context, it works as a warning: know when enough is enough and stop.
According to the provided KBS History summary, Goguryeo used planned retreats and scorched-earth tactics to exhaust the Sui army’s food supplies before forcing its withdrawal.
Main Summary
In 612, during the war between Goguryeo and the Sui dynasty, Eulji Mundeok used a strategy of delay and controlled retreat to draw the Sui army close to Pyeongyang. Goguryeo forces fought seven times and lost seven times, using these apparent defeats to lure the Sui army deeper into Goguryeo territory. The Sui soldiers had left Liaodong with 100 days of food, but as the march continued, many soldiers abandoned their heavy provisions. Goguryeo also used scorched-earth tactics, removing food from the fields so that the Sui army could not resupply locally.
In this situation, Eulji Mundeok sent the Sui general Yu Zhongwen a four-line poem:
English rendering: Your godlike strategy has mastered the patterns of heaven. Your subtle calculations have exhausted the principles of the earth. Your victories in battle have already raised your merit high. Know when enough is enough, and stop here.
KGATE30 INSIGHT
From the KGATE30 perspective, the key to this poem is that it sounds like praise, but functions as a warning.
This is not simply a literary text. It can be read as a sentence of psychological warfare written inside a military situation. Eulji Mundeok does not insult Yu Zhongwen directly. Instead, he praises Yu’s strategy and achievements so highly that stopping and withdrawing can appear to be an honorable choice.
It sounded like praise. It was actually a warning.
The guidepost of this page is simple: Eulji Mundeok’s four-line poem was not an isolated phrase. It came after delay, retreat, food exhaustion, and pressure had already weakened the Sui army.
Cultural Context
Context Note 1
In Korean historical memory, Eulji Mundeok is remembered not only as a military commander, but also as a strategist who used timing, terrain, supply pressure, and language. The poem to Yu Zhongwen is short, but it shows how honor, retreat, and psychological pressure could be expressed through classical writing.
Context Note 2
International readers may see the poem as a simple taunt after victory. A more useful way to read it is as a message that gave the enemy a face-saving reason to stop before complete collapse.
Knowledge Bridge: Timeline
Source
612: The Sui army invades Goguryeo.
Source
The Sui army leaves Liaodong with 100 days of provisions.
Source
Goguryeo fights seven times and loses seven times to lure the Sui army closer to Pyeongyang.
Source
Goguryeo’s scorched-earth tactics prevent the Sui army from finding local food.
Source
Eulji Mundeok sends the poem 「與隋將于仲文詩」 to Yu Zhongwen.
Source
The Sui army is forced into retreat before reaching Pyeongyang.
FAQ
Q1. What is 「與隋將于仲文詩」?
It is a four-line classical Chinese poem traditionally associated with Eulji Mundeok’s message to the Sui general Yu Zhongwen.
Q2. Is the poem praise or warning?
On the surface, it is praise. In context, it reads as a warning: your merit is already high, so stop here.
Q3. Why does this poem matter for KGATE30?
Because four short lines connect Korean history, military strategy, classical writing, and battlefield psychology.
Key Terms
Eulji Mundeok
A Goguryeo general.
Yu Zhongwen
A Sui general.
與隋將于仲文詩
Poem to the Sui general Yu Zhongwen.
神策究天文
Godlike strategy reaching the patterns of heaven.
妙算窮地理
Subtle calculation mastering the principles of the earth.
知足願云止
Know satisfaction and stop here.
Scorched-earth tactics
Removing food and supplies so the enemy cannot use them.
Battle of Salsu
A remembered Goguryeo victory over the Sui army.