The 1st Battalion, 19th Infantry, also had come under attack during the night. It held a strong defensive position below the Nam River on high ground four miles south of Chinju, overlooking the Sach'ŏn-Chinju road near its juncture with the road east to Masan.
Colonel Rhea and his men at dusk on 30 July could clearly see North Koreans out in the open going into position, but they were forbidden to fire because a ROK Marine battalion attack was scheduled to sweep across in front of them. But the ROK's never entered the fight there, and the enemy used this three-to-four-hour period unmolested for maneuvering against the 1st Battalion. [13-66]
That night, enemy mortars and
self-propelled weapons supported efforts of the
N.K. 15th Regiment to infiltrate
the 1st Battalion's position. But it was on terrain hard to attack, and the
enemy effort failed. The North Koreans in front of the 1st Battalion withdrew
before dawn, apparently veering off to the northwest.