Enemy troops were reported massing for an assault. One regiment located by forward observers behind Hill 139, some 700 yards northwest of Berlin, was taken under fire at 1940 by artillery and rocket ripple. At 2030, following their usual pattern of laying down a heavy mortar and artillery barrage, the CCF began to probe the MLR at Hills 119 and 111 in the Marine right battalion sector. They hit first at Hill 111, the far right anchor of the division line, currently held by 7th Marines personnel. Then the CCF moved westward to Hill 119. Their choice of time for the attack once again coincided with the relief of 7th Marines units by the 1st Marines.[519] When the assault began, H/3/1 was moving up to relieve H/3/7 at the easternmost point of the line in the Hill 111 vicinity, and Company I was preparing to relieve I/3/7, to its left.
[519] A similar incident had occurred on 7 July when the 7th Marines was attacked while in the process of relieving a regiment of the 25th Infantry. PacFlt EvalRpt No. 6, p. 9-58.
The Communist troops temporarily penetrated Hill 111 positions. At Boulder City, where the main force of the CCF two-battalion unit had struck, they occupied a portion of the trenchline. Attempting to exploit this gain, the Chinese repeatedly assaulted the Berlin Gate, on the left flank of Company G’s position and the East Berlin Gate, to its right. Marine units of the two regiments posted at the two citadel hills were heavily supported by MLR mortar, artillery, and tank fires. No artillery spotter or CAS flights were flown through the night, once again due to weather conditions.
By 2120, the bulk of Chinese soldiers had begun to withdraw from Hill 111, this attack apparently being a diversionary effort. But the enemy’s main thrust continued against the central Hill 119 position. Here the close, heavy fighting raged on through the morning hours, with enemy troops steadily reinforcing from the Jersey Ridge and East Berlin, by way of the Berlin Gate, the best avenue of approach to forward positions of Hill 119. At approximately 2100, the Chinese hurled a second attack against Hill 119 in the strength of two companies, supported by intense mortar and artillery fire. An hour later hand-to-hand combat had developed all along the 700 yards of the forward trenches. Company G men of the 1st Marines were down to half their original number, ammunition was running low, and evacuation of casualties was slowed by the fact that two of the eight corpsmen had been killed and most of the rest were themselves casualties.
By midnight, the front, left, and right flanks of the perimeter had been pushed back to the reverse slope of the hill and a 1st Marines participant commented “... only a never-say-die resistance was keeping the enemy from seizing the remainder of the position.”[520] At 0015, the thinning ranks of G/3/1 Marines (now down to 25 percent effectives) were cheered by the news that Company I men were about to reinforce their position. This latter unit itself suffered 35 casualties while moving into the rear area, when the Chinese intercepted a coded message and shifted a substantial amount of their mortar and artillery fires to the rear approaches of Hill 119.
[520] 1stMar SAR “Berlins,” Aug 53, p. 4.
In response to the enemy bombardment, Marine artillery fires crashed against the Chinese continuously from 2100 to midnight. Four ripples were launched in support of the Hill 119 defenders. In one of the regiment’s most intense counterbattery shoots on record, the 11th Marines in three hours had fired 157 missions. By 2400, an estimated 6,000 to 8,000 hostile rounds had fallen in the division sector.
Meanwhile, the Chinese were also attempting to punch holes in the 5th regimental sector. In a second-step operation, rather than striking simultaneously as was customary, the enemy at 2115 had jabbed at outposts Esther and Dagmar in the right battalion of the 5th Marines. The reinforced Chinese company from the 408th Regiment quickly began to concentrate its attention on Esther, outposted by Company H Marines. During the heavy fighting both Marines and Chinese reinforced. By early morning, the enemy had seized part of the front trenchline, but the Marines controlled the rear trenches and reorganized the defense under rifle platoon commander, Second Lieutenant William H. Bates. The Chinese unsuccessfully attempted to isolate the position by heavy shelling and patrolled vigorously between Esther and the MLR.
Marines replied with flamethrowers and heavy supporting fires from the MLR, including machine guns, 81mm and 4.2-inch mortar boxes. Three tanks—a section from the regimental antitank platoon and one from Company A—neutralized enemy targets with 153 rounds to assist the 3d and 2d Battalions. The 3/11 gunners supporting the 5th Marines also hurled 3,886 rounds against the Chinese in breaking up the attack. After several hours of strong resistance, the Chinese loosened their grip, and at 0640 on the 25th, Esther was reported secured.
By this time an enemy battalion had been committed piecemeal at the position. The action had developed into the heaviest encounter of the month in the 5th Marines sector. During that night of 24–25 July, more than 4,000 artillery and mortar rounds fell in the outpost vicinity; total incoming for the regimental sector throughout July was recorded at 8,413 rounds. Twelve Marines lost their lives in the battle, with 35 wounded and evacuated, and 63 suffering minor injuries. A total of 85 CCF were counted dead, 110 more estimated killed, and an estimated 250 wounded.