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On March 11 the 1st Bn was ordered to contact the 3d Bn 9th Mar along the beach at 202-E, the approximate center of the Regtl Zone of action. The Regtl attack order for the day called for, in addition to that mission just stated, the 1st Bn to attack NE, seize the ridge, and then attack East. The attack jumped off at 0730. At 1515 the 1st Bn and 3d Bn 9th made physical contact on the beach in the center of the Regtl Zone of Action and began mopping up toward the high ground overlooking the beach. These two battalions made contact also just south of HILL 362, on hill 202-A, which the 3d Bn seized in a rapid advance from just east of HILL 362 against slight resistance. The high ground 800 off of the beach was organized for the night, and the beach itself outposted. The 3d Bn 21st Mar during the day attacked eastward against the ever strong defenses, and succeeded in destroying positions, but were unable to make a measurable advance.

21st Marines

T 11 Mar. 2d Bn was finally passed through by elements of the 27th Mar, and continued to patrol beach area and assembled in vicinity of 217 W. One Co 1st Bn 21st Marines released from 9th Mar to parent organization. 1st Bn gained contact with elements of 27th Mar, and continued to patrol beach area and conduct mopping up operations in Regtl ZofA.