[172] Lieutenant Colonels Gerald F. Russell and Anthony Caputo, respectively, commanded 3/7 and 2/7 at this time. Across No-Man’s-Land, units of two Chinese divisions faced the 3,603 men of the 1st Marines. From west to east opposite the Marine regiment’s frontline battalions were elements of the 580th Regiment, 194th Division, 65th CCF Army and of both the 352d and 354th Regiments, 118th Division, 40th CCF Army. The 352d Regiment held most of the area on which the battle would be fought.[173] Enemy combat efficiency was rated as excellent and his forward units were well-supplied. The Chinese conducted an active defense, using limited objective attacks, numerous small-size probes, and creeping tactics to extend their OPLR line. Communist soldiers offered well-coordinated and tenacious resistance to Marine patrols, raids, and attacks. Within enemy lines a 775-foot elevation, known as Taedok-san, was situated directly north of the Marine division center and commanded the entire Bunker Hill area. [173] 1stMarDiv PIR 657, dtd 13 Aug 52. On JAMESTOWN, the dominating height was Hill 201, 660 feet high[174] and immediately to the rear of the MLR in the left battalion sector. Southwest of this elevation was the Marine stronghold, Hill 229, just 23 feet lower than Taedok, and believed by the Marines to have been the objective of the August battle. Directly north of Hill 201 was Hill 122, adjacent to the enemy OPLR, and called Bunker Hill by the Marines. It was shortly to become the scene of bitter fighting. The crest of Hill 122 was about 350 yards long. At a distance of about 700 yards, it generally paralleled the northeast-southwest direction of JAMESTOWN in the left of the 2/1 sector and adjoining 3/1 sector. [174] Frequently cartographers use elevations for names of hills. Heights on the Korean maps are in meters, and many of these hills derive their name (i.e., number) from their elevation. For changing meters to feet, the conversion factor 3.28 is used. Southwest of Bunker and a little more than 200 yards from the Marine MLR was Hill 124. This Hill 124–122 axis, for tactical purposes, was known as the Bunker Ridge. The ridgeline, roughly “cashew” in shape almost anchored back into the MLR on the forward slopes of Hill 229. To the northeast of Bunker Hill and separated from it by a wide saddle[175] was another enemy position, Hill 120. (See Map 9, for outposts and key hill positions in the 1st Marines center regimental area in early August.) [175] A saddle, the low point in the crest line of a ridge, is much in appearance like the side view of a riding saddle.