General Thomas E. Watson, assistant division commander of 4th Marine Division, ordered both the amphib recon and scout companies to continue reconnoitering, seizing and clearing other islands in the atoll, moving south toward the islet of Japtan, or LADYSLIPPER. While VAC Amphib Recon Company were operating on Parry island, or LILAC, in the eastern-side, Katzenbach's Scouts were clearing the islands and coral outcroppings on the western-side of DOWNSIDE. Once Katzenbach reached the larger islet of Rigii (POSY), 20 miles west of LILAC, and were engaged by hostile fire from the Japanese defenders; the scouts killed nine Japanese before declaring POSY secured.