On 1 April, at about 2130, the CCF began pounding the frontline companies in the KMC area with an artillery preparation. A half hour later, the enemy attacked an outpost and the main line. First to engage the Chinese were the OPLR troops of the KMC 1st Company; 1st Battalion, on the regimental right. There, a Chinese company forced an opening between friendly outposts and reached a point about 200 yards short of the MLR and just north of a road leading to the main bridge over the Imjin. While this attack was in progress, another CCF company hit the outpost line further south. This attack, less successful, ended far short of the MLR and about a half-mile south of the bridge road. Both enemy companies withdrew at about 2345. To the left of the 1st Battalion, the 3d was receiving the brunt of this initial CCF attack. The 9th, 11th, and 10th Companies (deployed in that order from west to east, in the left battalion sector), had been engaged by the same preliminary 30-minute shelling. At 2200, when four CCF squads attacked the two companies on the left, an enemy company hit the left end of the 10th Company, occupied by the 2d Platoon. About midnight the South Koreans, under fire from both flanks and under heavy frontal assault, were forced to withdraw. In the rear, the company commander pulled the 1st Platoon from the line, ordered the 3d to extend left to cover both sectors, and led a counterattack with the 1st Platoon and elements of the 2d. Positions were quickly restored by the KMC action. Soon after it had hurled the Chinese back across the OPLR, the 1st Battalion was subjected to a second attack. An enemy unit, estimated to be a company, engaged a 1st Company platoon briefly. When the KMCs returned heavy defensive fires, the Communists pulled back but struck again at 0300. After a 20-minute fire fight, the Chinese company retreated. This action on 1–2 April cost the attackers 2 killed, 34 estimated killed, and 10 estimated wounded. For the KMC, casualties were 2 killed, 10 wounded. To all 1st Division Marines, the successful defense by the 1st KMC regimental Marines was heartening. It had preserved not only the division western flank but also the vital link over the Imjin. _Subsequent CCF Attacks_[44] [44] Unless otherwise noted, the material for this section is derived from: 1stMarDiv, 1stMar, 5thMar, KPR ComdDs, Apr 52; KMC Regt UnitRpt 35, dtd 16 Apr 52.