USAF bases in South Vietnam and was not attacked during the January–February 1968 Tet Offensive. Given its security and attacks on other air bases, many transport aircraft from other less secure bases operated from Cam Ranh in early February. With the inactivation of the 12th Tactical Fighter Wing, the 483rd became the host wing at Cam Ranh Bay on 31 March 1970. In mid-1970 the 903d Aeromedical Evacuation Squadron moved to the base. On 9 July 1970 the first MAC C-5 Galaxy landed at the base, due to security and congestion issues at other bases it was initially the only base used by the C-5. On 30 August 1970 a Viet Cong (VC) rocket attack on the base destroyed 2 420,000 gallon jet fuel storage tanks. On 24 May 1971 PAVN/VC sappers penetrated the base and blew up storage tanks containing 1.5 million gallons of aviation fuel. On 25 August 1971 a VC sapper attack on the base's tri-service ammunition storage area destroyed over 6000 tons of munitions with a value of more than US$10 million. On 16 September 1970 the 39th Aerospace Rescue and Recovery Squadron equipped with HC-130Ps relocated from Tuy Hoa Air Base to Cam Ranh. In March 1971 the squadron moved to Korat Royal Thai Air Force Base. Commencing in September 1971 the C-7 squadrons at the base began to be inactivated. On 1 December 1971, the wing was reassigned from the 834th Air Division directly to Headquarters, Seventh Air Force at Tan Son Nhut AB. It gained a tactical electronic warfare mission in mid-1971 and a special operations mission in the autumn of 1971. These squadrons were: 20th Special Operations Squadron, 1 September 1971 – 1 April 1972 (UH–1P, No Tail Code) 90th Special Operations Squadron, 1 September 1971 – 15 April 1972 360th Tactical Electronic Warfare Squadron, 31 August 1971 – 1 February 1972 (EC-47N/P/Q Tail Code: AJ) 361st Tactical Electronic Warfare Squadron, 31 August – 1 December 1971 (EC-47N/P/Q Tail Code: AL) 362nd Tactical Electronic Warfare Squadron, 31 August 1971 – 1 February 1972 (EC-47N/P/Q C-47H Tail Code: AN) For its service in Vietnam, the 483rd was awarded two Presidential Unit Citations (21 January – 12 May 1968; 1 April – 30 June 1970) and three Air Force Outstanding Unit Awards with combat "V" device (1 January – 30 April 1967; 1 May 1967 – 30 April 1968; 1 July 1970 – 31