The following day saw the publication of X Corps OpnO 4, specifying subordinate unit missions. The 7th Infantry Division, together with the 92d and 96th Field Artillery (FA) Battalions, was instructed to mount out of Pusan and to land at Wonsan on order (see Map 2). These tasks were assigned to the 1st Marine Division: 1. Report immediately to the Attack Force Commander (Commander, Amphibious Group One) of the Seventh Fleet as the landing force for the Wonsan attack. 2. Seize and secure X Corps base of operations at Wonsan, protect the Wonsan Airfield, and continue such operations ashore as assigned. 3. Furnish logistic support for all forces ashore until relieved by Corps Shore Party.[37] [37] Special Report 1stMarDiv, in CinCPacFlt _Interim Evaluation Rpt #1_, annex DD, 11; 1stMarDiv _Historical Diary_ (_HD_), Oct 50; X Corps _OpnO 4_, 4 Oct 50. As Almond’s order went out for distribution on 4 October, EUSAK’s 1st Cavalry Division, bound for Kaesong, passed through the 5th Marines northwest of Seoul. Simultaneously, the II ROK Corps began assembling along the road to Uijongbu, captured by the 7th Marines the previous day.[38] [38] Smith, _Chronicle_, 54. After 20 days in the line, the weary battalions of the 5th Marines retired on 5 October across the Han River to an assembly area at Inchon. They were followed on the 6th by the 1st Regiment, and on the next day by the 7th Marines. The withdrawal of the latter unit completed the relief of X Corps, and General Almond’s command officially reverted to GHQ Reserve.[39] [39] _Ibid._, 55. October 7th also marked the displacement of the 1st Marine Division command post (CP) to Inchon, where planning and reality had finally merged to the extent that preparations for Wonsan could begin in earnest. Two days earlier, Vice Admiral Struble had re-created JTF-7 out of his Seventh Fleet; and by publication of his OpnO 16-50 on the same date, 5 October, he set in motion the operational elements involved in the projected amphibious envelopment. His new task organization, almost identical to that which had carried out the Inchon Operation with historic dispatch, was as follows: TF 95 (Advance Force) RAdm Allen E. Smith TG 95.2 (Covering & Support) RAdm Charles C. Hartman TG 95.6 (Minesweeping) Capt Richard T. Spofford TF 90 (Attack Force) RAdm James H. Doyle TF 79 (Logistical Support Force) Capt Bernard L. Austin TF 77 (Fast Carrier Force) RAdm Edward C. Ewen TG 96.8 (Escort Carrier Group) RAdm Richard W. Ruble TG 96.2 (Patrol & Reconnaissance) RAdm George R. Henderson TG 70.1 (Flagship Group) Capt Irving T. Duke