Key Facts
- Date range
- October 202 – June 203
- Dynasty context
- Late Eastern Han dynasty
- Initiating faction
- Warlord Cao Cao
- Defending faction
- Yuan Shang and Yuan Tan (sons of Yuan Shao)
- Time since Yuan Shao's death
- ~4 months before first engagement
Strategic Narrative Overview
Cao Cao launched his invasion in October 202, engaging the Yuan brothers at Liyang. The fighting proved inconclusive, and Cao Cao eventually withdrew from the confrontation. However, the pressure of the campaign exposed deep hostility between Yuan Shang and Yuan Tan. Shortly after Cao Cao's temporary retreat, Yuan Tan mutinied against his younger brother Yuan Shang, fracturing their combined defensive capability.
01 / The Origins
Following the death of the powerful northern warlord Yuan Shao in mid-202, his sons Yuan Shang and Yuan Tan inherited his domain but immediately fell into rivalry over succession. Cao Cao, who had defeated Yuan Shao at the Battle of Guandu in 200, seized on this instability to press northward and eliminate the Yuan family as a competing power in the late Eastern Han political landscape.
03 / The Outcome
Cao Cao's withdrawal did not secure a Yuan victory; instead, the mutual distrust ignited open conflict between the two brothers. Yuan Tan's mutiny against Yuan Shang undermined any unified resistance. This internal collapse would prove decisive in subsequent campaigns, leaving the Yuan territories vulnerable and ultimately enabling Cao Cao to complete their destruction in the following years.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Cao Cao.
Side B
1 belligerent
Yuan Shang, Yuan Tan.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.