February 19, 1967 . A lack of air support due to weather conditions saw hand-to-hand fighting, in which a larger force attacked from three sides and was repulsed. 8th Airborne Battalion, Army of the Republic of Vietnam The 8th Airborne Battalion, Republic of Vietnam Airborne Division was awarded a Presidential Unit Citation for combat action on February 25–28, 1967 for moving through 800m of open-rice fields to assault a fortified position. Two days later the same unit was ordered to move through 2000 meters in order to flank another enemy position. Despite heavy casualties, the unit fought the next day and assaulted a machine-gun and mortar position, deploying small-arms, bayonets and hand-grenades to overwhelm enemy positions. This is with the unit having relatively little artillery support throughout the battle, and with other units in disarray. 1st Battalion Group, Royal Australian Regiment, Vietnam, 1965–1966 Between May 1965 and May 1966, the 1st Battalion Group, Royal Australian Regiment, consisting of the 1st Battalion, Royal Australian Regiment, the 4th/19th Prince of Wales's Light Horse, 105 Field Battery Royal Australian Artillery, 3 Field Troop Royal Australian Engineers, 161st Independent Reconnaissance Flight, and 1st Australian Logistical Support Company served as part of the US 173rd Airborne Brigade in Vietnam. During that time, the Brigade was constantly involved in heavy fighting, as it was invariably one of the leading units in the front line. For its service throughout this period, the 1st Battalion, Royal Australian Regiment, and its attachments were awarded the United States Meritorious Unit Commendation. The streamer of the commendation, bearing the honour 'Vietnam 1965–66', is carried on the Regimental Colour of the 1st Battalion, Royal Australian Regiment. 3rd Armored Cavalry Squadron, Army of the Republic of Vietnam In 1971, the Presidential Unit Citation (US) was awarded to the 3d Armored Cavalry Squadron and attached U.S. Advisor/Liaison Personnel (MACV) for extraordinary heroism in action against an armed enemy during the period January 1, 1968, to September 30, 1968, in Pleiku and Binh Dinh Provinces. The Squadron engaged a Viet Cong battalion near the city of Pleiku during the Tet Offensive. Elements of the Squadron spearheaded direct strikes against the 18th North Vietnamese Army regiment in other major engagements in Binh Dinh Province and the city of Phu My. On February 1, 1968, they fought a pitched battle with the Liberation Front's H-15 Local Force Battalion in or near Pleiku. In August 1968, elements of