Battle for the Punchbowl: The U. S. 1st Marine Division 1951 Fall Offensive of the Korean War Page: 59
THE SEIZURE AND DEFENSE OF YOKE RIDGE
Day One: August 31
The attack orders came from division in the form of Division OpnO 22-51 (OpnO is
short for Operation Order). The 7th Marines and 1st KMC were to be the attacking forces.
Jump-off time (commonly referred to as "H-Hour" by Marines) would be 0600 on 31
August. The LD (Line of Departure) would be an imaginary line from Hill 755 northeast
almost to Tonpyong. (See Maps # 17 and 18) At the time, there was much talk from
POWs taken in the sector that another large-scale Communist offensive was imminent,
and the division knew that Yoke Ridge was being reinforced by the enemy, possibly in
preparation for the offensive. POWs reported that the Communist attack was to begin
as early as 1 September. Intel (intelligence) reported that as many as three enemy
regiments were enroute to reinforce Yoke, and more artillery was known to accompany
them. The division attack the first day was intended to push the NKPA off the right end
of the ridge and cut off further enemy reinforcement to it, then roll up the remainder of
defenders from east to west. Third battalion, seventh Marines (3/7) was to take the part
of the ridge east of Hill 924 (Hills 602 and 702), "Division Objective 2;" the 1st KMC
regiment, Hills 924 and 1026, "Division Objective 3." "Division Objective 1" was to the
east across the river; 1/7 had already occupied it without a fight. (See Map # 18)1
1st Mar Div, "Historical Diary," August 1951, Msg 301206K; Lynn Montross, et al., The East-Central
Front, chapter IX; Allan R. Millett, Drive North, 40-41; U. S. Pacific Fleet, "Third Interim Evaluation
Report," chapter 15; 1st Mar Div, "Historical Diary," August 1951, 6-8. The enemy was relieving the II NK
Corps with Ill NK Corps, of which the 1st NKPA Division was a part.
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Montandon, Joshua W. Battle for the Punchbowl: The U. S. 1st Marine Division 1951 Fall Offensive of the Korean War, thesis, August 2007; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc3938/m1/74/ocr/: accessed April 28, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .