 The 11th and 12th Regiments were poised foro an attack from the west, while the 10th Regiment occupied assault positions approximately 2.5 miles southwest of Pohang-dong.During the night large amounts of ammunition were carried to gun positions and last-minute preparations were made.On September 12, 1950, UN forces began laying a heavy artillery concentration on positions held by the 10th Regiment and later in the day the 11th and 12th Regiments were likewise engaged by artillery.