It was the enemy’s misfortune that 3/1 had sent out a patrol of eight Marines and three natives under Corporal Charles E. Collins to make contact with a similar patrol from the 5th Marines. But at 0130 the clamor of a fire fight about 400 yards in front of 3/1 was followed by the return of members of the patrol who gave the alarm. Corporal Collins was still missing when Major Simmons heard the sound of tracked vehicles and was warned that two enemy tanks were approaching the George Company roadblock defended by heavy machine guns, 3.5-inch rocket launchers and 75mm recoilless guns.[421] [421] 3/1 _SAR_. These weapons accounted for the destruction of one enemy tank and the hasty retreat of the other. The Division attack scheduled for 0200 was indefinitely postponed, of course, until 3/1, astride the principal avenue of approach, could deal with a large-scale enemy counterattack launched by an estimated battalion of infantry and about 12 tanks supported by self-propelled guns and mortars. A terrific concentration of Marine artillery was called down upon an NKPA effort that reached its peak about 0230. High-angle Marine howitzer and 81mm mortar fire almost literally blasted the attacking column out of existence, and enemy infantry action was negligible afterwards.[422] [422] _Ibid._ At 0315 the artillery liaison officer informed Puller that the three battalions of the 11th Marines must cease barrage fire at the penalty of burning out the tubes of their howitzers. During the comparative lull the T-34s continued to attack at intervals until daybreak, and the last two tanks were killed at 0630.[423] About that time Corporal Collins returned safely after having been given up as dead. Exposed to friendly as well as enemy fire all night, he had made his way back through enemy-held areas in a disguise of Korean civilian garments. [423] 1st MarDiv _SAR_, Annex Peter Peter. POW interrogation and examination of the ground revealed that seven enemy tanks and two self-propelled guns were destroyed or disabled by Marine mines, rockets, mortars, or artillery. An estimated 475 to 500 infantry of the NKPA 25th Brigade had been killed and many more wounded, and the Marines took 83 prisoners at a relatively light cost in casualties.[424] [424] _Ibid._ At 0500, as 3/1’s fight in the city was tapering off, another Red force of battalion strength hit the 2d Battalion, 32d Infantry, on South Mountain. A section of the Army unit’s front was overrun, but a counterattack restored the line by 0700. Finally driven from the ridge, the North Koreans left behind 394 dead and 174 prisoners, according to the regimental report.[425] [425] 32d Inf _War Diary_, 18–30 Sep 50. _Entrapment of Dog Company, RCT-7_