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19 August 1950
By 19 August the entire 2nd division had reached the Korean peninsula and was on its way into action as a unit. [05-68]
Lacking non-divisional artillery, MacArthur asked the Joint Chiefs on 19 July to send him light, medium, and heavy artillery battalions. He asked for six 155-mm. howitzer Battalions, self-propelled, as the first shipment. He also asked for an artillery group headquarters and a field artillery observation battalion. He pointed out that his division commanders in Korea would be forced, by the extensive frontages, broken terrain, and the limited road nets, to employ their divisions by separate RCT's.
With a projected American force in Korea, based upon JCS-approved deployments as of that date, of 4 Army divisions and 1 Marine RCT, there would be 13 American regiments available in Korea. At least ten of these regiments could normally be expected to be in the front lines at any given time.
Since only four battalions of 155-mm. howitzers would be present with division artillery units, six more battalions would be required if each of the ten regiments was to have a medium artillery battalion when it was used as an RCT. Two 8-inch howitzer battalions and the 155-mm. guns would be required for general support along the whole front. Light battalions could either reinforce division artillery units, or, if desirable, be committed in support of South Korean units.
General MacArthur noted that the profitable extent to which American artillery should be used in support of South Korean forces was under study by his staff.