HistoryData
war1187

1187 battle in Genghis Khan's campaign to unify Mongolia

January 1, 1187

Temüjin's decisive defeat by Jamukha at Dalan Baljut marked a low point in his rise, preceding a decade of obscurity before his eventual unification of Mongolia.

Quick Facts

Year
1187
Category
war

Key Facts

Year of battle
1187
Jamukha's force size
30,000 troops
Captives executed by Jamukha
70 young males boiled alive
Temüjin elected Khan
c. 1186, one year before battle
Post-battle obscurity
Next 10 years of Temüjin's life unclear

By the Numbers

1,187
Year of battle
30,000
Jamukha's force size
70
Captives executed by Jamukha
1,186
Temüjin elected Khan

Location

Mongolia

Cause → Event → Consequence

Cause

Temüjin and Jamukha, once blood brothers, grew apart over differing visions of Mongol society. Jamukha favored traditional aristocracy while Temüjin championed meritocracy, attracting followers across social classes. When Temüjin was elected Khan of the Mongols around 1186, Jamukha viewed this as a direct threat to his own power and mobilized to confront him.

Event

In 1187 at Dalan Baljut, Jamukha led approximately 30,000 troops against Temüjin. Temüjin was decisively defeated in the engagement and forced to flee. The battle was a significant military reversal for Temüjin, who had until then been consolidating influence and followers through campaigns and proclamations of divine favor.

Consequence

Following the defeat, Temüjin disappeared from historical record for roughly ten years. Jamukha's brutal execution of 70 captives by boiling them alive, however, shocked and alienated potential supporters, ultimately undermining his own position. Temüjin would eventually recover and go on to unify the Mongol tribes under his leadership.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Temüjin (Genghis Khan)
Key Commanders

Temüjin.

Side B

1 belligerent

Jamukha
Peak Mobilized Forces~30K
Forces vs Casualties ratio
0Mobilized
Key Commanders

Jamukha.

Outcome
Decisive victory for Jamukha; Temüjin defeated and forced to flee

Timeline Context

Timeline around 11871187118411851186118811891190battle-of-dalan-baljut-1187