Station, Eights Station, Plateau Station, Hallett Station, and Little America IV and Little America V MCB 1s construction of a nuclear power plant which got them a Navy Unit Commendation. NMCB 71s construction of a Buckminster Fuller Geodesic dome at So. Pole Station. It became a symbolic icon of the United States Antarctic Research Program (USARP). see Notes Vietnam War Seabees were in Vietnam twice in the 1950s. First in June 1954, as elements of Operation Passage to Freedom and then two years later to map and survey the nation's roads. Seabee teams 501 and 502 arrived January 1963 and are recorded as the first Seabees of the Vietnam War. They went to Dam Pau and Tri Ton to build Special Forces camps. In 1964, ACB 1 was the first CB in the theatre. In 1965, Marines and Seabees made an amphibious landing at Chu Lai and entire Naval Construction Regiments followed. Seabees supported the Marines at Khe Sanh and Chu Lai combat bases in addition to building numerous aircraft-support facilities, roads, and bridges. Every mile of road improved equated to 100' of bridgedeck constructed. They also worked civic action projects throughout the country. In June 1965, Construction Mechanic 3rd Class Marvin G. Shields of Seabee Team 1104 was at the Battle of Dong Xoai. He was posthumously awarded the Medal of Honor and is the only Seabee to receive the award. Seabee Teams were deployed throughout the War. They typically built schools, clinics, or drilled wells. In 1966, Seabees repaired the airfield at Khe Sahn laying aluminum matting covering 3,900'x60' in four days. General Westmoreland "called it one of the most outstanding military engineering feats of the war." MCB 4 had a det at Con Thien whose actions were a near repeat of Dong Xoai. In 1968, the Marine Corps requested that the Navy make a change. The Marines were using "MCB" for Marine Corps Base while the Navy was using "MCB" for Mobile Construction Battalion, it was causing confusion in logistics. The Navy agreed and added "Naval" to MCB creating the NMCBs that now exist. During that year the 30th NCR had five battalions in the Da Nang area and two at Chu Lai. The 32nd NCR had three battalions tasked near Phu Bai and one at Dong Ha. In May 1968 two reserve battalions RNMCB 12 and 22 were activated, bring the total number of battalions in