It is desired that more use be made of maneuver within and between division zones with a view toward trapping and annihilating the enemy through such maneuver. Movements should be less stereotyped; it is not desirable that units always advance toward the enemy abreast. Well planned and successfully executed maneuver using companies and battalions has previously been conducted; this should be extended to include regiments. This Headquarters is studying and will continue to study and order into execution the maneuver of divisions with the same intent and purpose.[132] [132] IX Corps msg IXACT-1053 (122100) in 1stMarDiv _HD_, Mar 51. Both the 1st Marine Division and 1st Cavalry Division made rapid progress toward Phase Line BAKER (Map 9), established by IX Corps as an intermediate control. Unfortunately for the purposes of the envelopment maneuver, the Chinese withdrew from the Hongchon area before the pincers could close or the 187th Airborne make an air drop. CCF resistance was confined to machine gun fire covering hasty retirements. The 7th Marines on the left occupied its objective without once calling for air or artillery support, and the 1st Marines was virtually unopposed. Division casualties for the 14th were six men wounded. Flash floods and roads churned into hub-deep mud were the greatest enemies of progress. Serious as the resulting supply problems were, they might have been worse but for the efforts of the recently organized Civil Transport Corps formed from members of the ROK National Guard who lacked the necessary training for military duties. There was no shortage of willing indigenous labor, for these auxiliaries received pay as well as rations and clothing. Formed into companies, they worked with the wooden “A-frames”--so-called because of their shape--used from time immemorial in Korea as a rack for carrying heavy burdens. [Illustration: USA Photo SC 356353 _Flight From The Foe--A Korean carries his aged father across the icy Han River in the flight southward to escape the advancing Communist troops in their drive of January, 1951._ ] [Illustration: USMC Photo A 158073] _At the Critical Moment--Above, a Marine tank blasts an enemy emplacement while a rifleman stands by for the final assault; below, Marine riflemen hug the ground as they advance under fire during Operation RIPPER in March, 1951._ [Illustration: USMC Photo A 6862] [Illustration: USMC Photo A 8064 USMC Photo A 161016] _Attack--Above, Marine machine gunner climbs a ridge while a flamethrower operator burns straw to deny cover to the enemy; below, a young rifleman hurriedly reloads after emptying a clip at Chinese Communist soldiers._ [Illustration: USMC Photo A 159023] [Illustration: USMC Photo A 155354] _Supporting The Fighting Man--Above, a group of surgeons are at work in a minor surgery ward; below, a cargador train carries ammunition and rations to the front-line companies._