in the afternoon to guard the high ground over the formation against infiltration during the night. On December 9, the formation moved out to march the remaining distance to the Hungnam bridgehead, getting clear by December 11 and embarking with 22,000 US Marines to be shipped down to Pusan. The action had left 41 Commando with 93 casualties, and so the unit was withdrawn to Japan for reinforcement during the winter of 1950/51. The actions of 1st Marine Division led to it receiving a Presidential Unit Citation, a US Navy award. Although 41 Commando was not mentioned in the original citation (as US Navy regulations did not originally allow bestowal upon foreign forces), representations to the USMC subsequently led to it also receiving the award, which was accepted in 1957. The streamer was born on the Regimental Colour of 41 Commando, Royal Marines until its disbandment in 1981. UN Forces in the Chinese Spring Offensive During the April 1951 Chinese Spring Offensive, along the breadth of the United Nations front, UN forces faced attacks from numerically superior Chinese Communist forces. Among the units which received the Distinguished Unit Citation for battles during this offensive were the following: 1st Battalion, Gloucestershire Regiment, together with C Troop, 170 Mortar Battery, Royal Artillery: In the Battle of the Imjin River, 1st Battalion, Gloucestershire Regiment, together with C Troop, 170 Mortar Battery, Royal Artillery, was surrounded and all but a handful of its soldiers killed or captured after holding off the Chinese for three days. The streamer of the citation, bearing the honour 'Solma-ri', was attached to the Regimental Colour of the 1st Battalion. Since the amalgamation of the Gloucestershire Regiment, this tradition has been assumed by the 1st Battalion, Royal Gloucestershire, Berkshire and Wiltshire Light Infantry until its amalgamation into The Rifles in 2007. In addition to the Presidential Unit Citation, 170 Mortar Battery was awarded an Honour Title to become 170 (Imjin) Battery, Royal Artillery. Today it is 25/170 (Imjin) Battery, of the 47th Regiment Royal Artillery. Belgian–Luxembourg UN Battalion: a Belgian battalion with an attached Luxembourg platoon, attached to the British 29th Brigade, the battalion initially held the brigade's right flank and was able to withdraw under enemy fire and move into the gap created by the Chinese surrounding of the Glosters. The Belgians and Luxembourgers participated in the attempts to relieve the Glosters and to hold the line. Tank Company,