Enemy casualties were listed conservatively as 2,221. This represented 536 counted killed, 654 estimated killed, 174 counted wounded, 853 estimated wounded, and 4 prisoners. The Marines, moreover, in the five days of furious fighting had knocked out the 358th CCF Regiment, numbering between 3,000 and 3,500 men, and destroyed its effectiveness as a unit.
Throughout the Vegas operation, the 1st Marine Air Wing had flown 218 combat missions against the Nevada Cities hills (63 percent of the entire month’s total 346 CAS missions), bombing and strafing enemy weapons positions, bunkers, ammunition dumps, trenches, and troops. On the 27th and 28th, while heavy fighting raged in both the Marine and 7th Army Division sectors, Marine Air Group 33 pilots flew 75 sorties—resulting in their highest daily sortie rate and air hours since December 1952. The March 28th date was a noteworthy one for MAG-12, too. It established a new record for combat sorties and bomb tonnage unloaded on the enemy in a single day; the group executed 129 sorties and dropped 207.64 tons of bombs and napalm.
Although restricted on two days by weather conditions, close air support was effectively used throughout the Vegas Cities operation. A total of 81 four-aircraft flights dropped approximately 426 tons of explosives in CAS missions. Smoke and flare planes—despite a shortage of both flare planes and flares[385]—were employed throughout the period as were the rotary aircraft of the two helicopter squadrons, the latter for casualty evacuation operations.
[385] CG, 1stMarDiv msg to COs, 1stMar, 5thMar, 7thMar, KMC, KPR, dtd 31 Mar 53, in 1stMarDiv ComdD, Mar 53, App. II, p. 9.
Tanks, provided by the Company A direct support tank company, were used day and night, firing from nine positions along the MLR. Their effective use to mark air targets was of particular importance in connection with their support role, while the tank light also helped to provide illumination of the objective area in hours of darkness. Approximately 7,000 rounds of 90mm tank ammunition were fired.
During these five tense days the enemy deluged Marine positions with 45,000 rounds of artillery, mortar, and mixed fire. Indicative of the savage pounding the Vegas area took is the fact that incoming Chinese artillery for the full two-week period from 1–15 March totaled only 3,289 rounds. Marine efforts to defend, counterattack, secure, and hold the Vegas outpost against repeated Chinese assaults were “marked by maximum use of and coordination with various supporting arms and organic weapons.”[386] Three light artillery battalions, two medium battalions, two 8-inch batteries, one 4.5-inch rocket battery, and two companies of 4.2-inch mortars fired a combined total of 104,864 rounds between 27–31 March; the 11th Marines and its heavy Army reinforcing elements, in support of 5th and 7th Marines units, executed 332 counterbattery and 666 countermortar missions. Of the total number fired, 132 were air observed.
[386] 5thMar SAR “Cities,” p. 8.
The artillery shelling was the hottest during a 24-hour period ending at 1600 on 28–29 March. During this time 35,809 rounds were fired (33,041 from the four Marine battalions). This even surpassed the previous record of 34,881 rounds fired during a one-day period in the Bunker Hill defense of August 1952. A new one-day battalion total for West Korean fighting was also set on the 28th; 1/11 fired 11,079 rounds, exceeding the record of 10,652 set by 3/11 during the Bunker Hill fighting.
Marines at a rear area supply point achieved another record. In a 24-hour period, during the heavy fighting on 28–29 March, 130 men handled 2,841 tons of ammunition. Second Lieutenant Donald E. Spangler, an ammunition platoon commander with the 1st Ordnance Battalion, who had but 13 hours’ sleep in the entire five days of fighting, proudly noted that his unit had “more than doubled the tonnage that the U.S. Army says a man can handle in 14 hours.”[387]
[387] Heinecke, op. cit., p. 50.