_US X Corps_--1st Marine Division, 2d Infantry Division, 5th and 7th ROK Divisions; _ROK III Corps_--9th and 3d Divisions; _ROK I Corps_--Capitol Division and ROK 11th Division. “I don’t want to lose a company--certainly not a battalion,” Van Fleet told the corps commanders. “Keep units intact. Small units must be kept within supporting distance.... Give every consideration to the use of armor and infantry teams for a limited objective counterthrust. For greater distances, have ready and use when appropriate, regiments of infantry protected by artillery and tanks.”[193] [193] _Ibid._ From the foxhole to the command post a confident new offensive spirit animated an Eight Army which only four months previously had been recuperating from two major reverses within two months. The Eighth Army, in short, had been welded by fire into one of the finest military instruments of American military history; and the foreign units attached to it proved on the battlefield that they were picked troops. With the Hwachon dam now in enemy hands, the Communists had the capability of closing the gates, thus lowering the water level in the Pukhan and Han rivers to fording depth. As a countermeasure, EUSAK asked the Navy to blast the dam. It was a difficult assignment, but Douglas AD Skyraiders from the _Princeton_ successfully torpedoed the flood gates on 1 May.[194] [194] _PacFlt Interim Rpt_ No. 2, II, 766. An atmosphere of watchful waiting prevailed during the next two weeks as the Marines on NO NAME Line improved their defensive positions and patrolled to maintain contact with the enemy. Eighth Army evolved at this time the “patrol base” concept to deal with an enemy retiring beyond artillery range. These bases were part of a screen, called the outpost line of resistance (OPLR), established in front of the MLR. Their mission was to maintain contact with the enemy by means of patrols, give warning of an impending attack, and delay its progress as much as possible. When it came to artillery ammunition, the 11th Marines found that it had progressed from a famine to a feast. Where shells had recently been rationed because of transport difficulties, the Eighth Army now directed the cannoneers along NO NAME Line to expend a unit of fire a day. The 11th Marines protested, since the infantry was seldom in contact with the enemy. One artillery battalion submitted a tongue-in-cheek report to the effect that the required amount of ammunition had been fired “in target areas cleared of friendly patrols.”[195] The requirement was kept in force, however, until the demands of the renewed CCF offensive resulted in another ammunition shortage for the 11th Marines. [195] Col Merritt Adelman, ltr of 10 Feb 58.