After further discussion, it was decided that all three units would attack simultaneously along the routes already designated. However, the 5th RCT was given a preparatory mission of uncovering the Tosan junction before the Brigade began its advance.[169] D-day was scheduled for 7 August. All participating units were to be part of Task Force Kean, so named after the 25th Division commanding general who would exercise overall control. [169] Annex How; and Brig Op Plan 4-50. Craig hurried from the conference to alert the Brigade. In a past military age a general might have sprung into the saddle, but the Brigade commander had discovered a steed that covered more ground. He and Stewart climbed into a HO3S-1 helicopter piloted by Lieutenant Gustave F. Lueddeke of VMO-6, and a few minutes later they landed at Lieutenant Colonel Murray’s CP to brief him on the forthcoming action. [Illustration: BRIGADE ACTION ON SOUTHWESTERN FRONT 7–13 AUGUST 1950] CHAPTER VI Action on Hill 342 _First Platoon Fight--The Perimeter on Hill 342--Call for Artillery Fires--Task Force Kean Stalled--General Craig Assumes Control--Enemy Attack at Dawn_ On 6 August 1950 the Brigade was attached to the 25th Infantry Division and ordered forward to Chindong-ni. The area from that village westward toward the Tosan junction was occupied by thinly spread elements of the 5th RCT and the 27th Infantry. While the former took over front line positions preparatory to launching the main attack on the next day, the latter was gradually displacing rearward to go into Eighth Army reserve.[170] [170] Annexes 1 and 2 to 25th InfDiv War Diary, Sep 50, Book VIII; and Brig SAR, basic rpt. To facilitate the early relief of the 27th Infantry, Lieutenant Colonel Robert D. Taplett’s 3d Battalion, 5th Marines, departed from Changwon at 1040, 6 August, and arrived at Chindong-ni less than 2 hours later. The infantry unit was accompanied by the 1st Battalion, 11th Marines; the 2d Platoon, 75-mm. Recoilless Guns; and the 3d Platoon, Company A Engineers. After assembling in a schoolyard north of the village, 3/5 relieved the 2d Battalion, 27th Infantry, on and around Hill 255.[171] [171] All hill numbers given in this text refer to the highest peak of the specific high ground being considered. Numbers indicate height in meters above sea level, and Hill 255 is therefore more than 800 feet high. Chindong-ni, being almost at the water’s edge, may be taken as sea level.