Happy Valley, Vietnam
The Vietnam War
Happy Valley was a major Vietcong (VC)/North Vietnamese Army (NVA) base camp, storage area and supply infiltration route. Men and material would move from NVA base areas near Ai Yen 20 km east of the Laotian border, down Route 614, to units operating near Song Tuy Loan or other positions overlooking or surrounding the Danang vital area, comprising Danang City, Danang Air Base, Force Logistics Command, port facilities, and Marble Mountain Air Facility. The NVA would fire 122mm rockets (with a range of 12 km) from the hills overlooking Danang (the “Rocket Belt”) at the city and military facilities. The Happy Valley area was covered by dense undergrowth and elephant grass 7 – 10 feet tall.
The Valley was the scene of numerous engagements during the Vietnam War, to disrupt NVA movement and counter the rocket belt, including:
- Operation Mameluke Thrust
Operation Mameluke Thrust This was a 1st Marine Division operation in central Quang Nam Province with the 2nd Batallion, 5th Marines, 3rd Battalion, 5th Marines, and 2nd Battalion, 7th Marines against the 308th NVA Division as a companion to Operation ALLEN BROOK. Casualties: US 175 KIA, 1,161 WIA; NVA 2,728 KIA. 
- Operation Oklahoma Hills
Operation Oklahoma Hills a clear and search operation mounted by the 1st Battalion, 7th Marines, 2nd Battalion, 7th Marines, 3rd Battalion, 7th Marines and 3rd Battalion, 26th Marines and ARVN 51st Regiment from 1 March to 29 May 1969.
- Smith, Charles (1988). U.S. Marines in Vietnam High Mobility and Standdown 1969. History and Museums Division, Headquarters, U.S. Marine Corps. pp. 103–104.
- Smith, p.104
- OOB, RAND, Chron P:76
- Smith, p. 109-117
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