Song Shilun was the commander and political commissar of the 9th Army group of the Chinese volunteers. His armies fought against the 31st Regimental Combat team. Through November through December in 1950, his army fought against the 1st Marine Division at the Chosin Reservoir.
The 9th Army Group consisted of:
-20th Army
-26th Army
-27th Army
-42nd Army
The 9th Army Group consisted of:
-20th Army
-26th Army
-27th Army
-42nd Army