On 1 May the 5th Marines, then in reserve at Camp Rose, took over responsibility for the 14th Infantry Regiment, designated as the Army maneuver unit. Later that day, when Colonel Tschirgi’s regiment closed its headquarters and moved out by motor march to Casey, control of the Army unit transferred to the division. The same day, the 1st KMC/RCT artillery battalion--which, like the 11th Marines units, was to remain on line although KMC infantry personnel were to move to I Corps reserve--came under control of I Corps; two days later an Army armored unit, the 89th Tank Battalion, rolled into position in the KMC rear support area and came under division command. The 7th Marines right regimental sector, with its critical Nevada Cities and two Berlin positions, became the new home for the Turkish battalions of Brigadier General Sirri Acar in a four-day phased operation, beginning 0115 on 3 May. Actual bulk displacement of the first Marine MLR units and their respective outposts got underway on this date, when responsibility for the 7th Marines left battalion sector transferred from 2/7[413] to the 1st Battalion, TAFC, and the 7th Marines battalion began displacing to Indianhead. On the same day the division opened its advance command post at Camp Casey. [413] On 23 April, 2/7 had relieved 1/7 in the left battalion sector and 1/7 became the regimental reserve. There was no change in 3/7’s location in the right sector. These were the positions for transfer with the Turkish troops in early May. The first Marine sector to complete the relief was the 1st Amphibian Tractor Battalion, to the south of the Munsan-ni railhead; at midnight on 4 May, with the assumption of sector responsibility by the Army Task Force Track, it moved to the logistical complex at Ascom City where it opened its new CP. Throughout the BMNT hours of 4 and 5 May, Marine positions were transferred to the incoming organic and/or attached units of the U.S. Army 25th Division. Relief of three of the major sectors in the Marine division line was thus well under way by the early hours of the 5th. Final relief and its elaborate phasing operations were completed that morning. On the left flank, the 1st KMC was relieved at 1030 by the incoming U.S. Army 27th Infantry;[414] 30 minutes later, the 1st Marines was replaced in the line by the Army 35th Infantry; and on the right, the 7th Marines sector was taken over by the TAFC. (See Map 28.) [414] _ROKMC Comments._ Sharply at 1120 on 5 May,[415] the U.S. Army 25th Division assumed responsibility for defense of the MLR in what had been the 1st Marine Division sector for more than 13 months. At the same time all 25th Infantry Division units under operational direction of the division also reverted to parent control. In addition to the Kimpo Regiment, several small Korean Service Corps and medical units retained in the sector also came under Army command.