many members of Task Force Faith to reach safety and fight again. Withdrawal from North Korea The 385 able-bodied survivors of Task Force Faith were formed into a provisional battalion which was attached to the Marines and fought with them in the breakout of the 1st Marine Division during the remainder of the Battle of Chosin Reservoir. This unit was made up of survivors from east of Chosin, as well as units from Hudong-ni and Hagaru-ri; Tank Company, 31st Infantry, which had been at Hudong-ni and withdrawn on 30 November with other Hudong units, was attached to the 5th Marines as rear guard during the breakout on 6–7 December. The so-called Provisional Battalion (known as "31/7" under Lieutenant Colonel Berry K. Anderson) was actually formed into two small battalions of three rifle companies each, 3/31 (Major Carl Witte) with I, K and L, 1/32 (Major Robert Jones) with companies A, B and C. Casualties During the night of 1 December, hundreds of survivors from the task force reached Marine positions south of the reservoir at Hagaru-ri. Several hundred more were rescued the following day by Marine jeep patrols. Some soldiers taken prisoner by the Chinese were released a few hours later. Of the 2,500 troops trapped by the Chinese north of the roadblock, about 1,500 eventually made it back to American lines, the majority of them wounded or badly frostbitten. Over 1,000 soldiers of Task Force Faith were killed or died in Chinese captivity, about a third of the original strength of RCT-31. RCT-31 was the largest American unit destroyed except for the 8th Cavalry Regiment, previously destroyed to the west, and the 2nd Infantry Division, rendered ineffective due to one third casualties, near Kunu-ri, also to the west. Casualties for the opposing Chinese 80th and 81st Divisions are not known precisely, but are believed to be extremely heavy. Both divisions were not identified again on the battlefield until early April 1951. Chinese record claims 4,300 killed and seriously wounded. This number does not include the many Chinese soldiers who froze to death due to a lack of winter clothing. The majority of RCT-31 survivors, suffering from wounds and/or frostbite, were evacuated to hospitals in Japan. 7th Division units comprising the task force were soon reconstituted, going back into battle in February 1951. Legacy Chinese documents and research by historians Marine Corps Major Parrot and Roy Appleman provided evidence that