 The PVA 38th Corps , on the other hand , was marching towards the Kunu @-@ ri — Sunchon road virtually unopposed . On 7 a.m. at November 28 , the PVA 113th Division of the 38th Corps occupied the town of Samo @-@ ri , placing it right in the path of the 5th Cavalry Regiment and besides the Kunu @-@ ri — Sunchon road . An hour and half later , the advance platoon from the 5th Cavalry Regiment was ambushed and destroyed . With its advance blocked , the 5th Cavalry Regiment tried to dislodge the Chinese garrison , but it was forced to turn back by the afternoon . The 113th Division then occupied the valley containing the Kunu @-@ ri — Sunchon road at that night and blocked the retreat route of the US 2nd Infantry Division . Upon receiving the news on November 29 , 1st Battalion , Middlesex Regiment , part of 27th Brigade , tried to clear the valley from the south , but the attack was halted due to the lack of heavy weapons . 
